\begin{table}
\caption{Full capabilities of the PDR model codes participating in the Leiden comparison study.}\label{characteristics}
\begin{tabular}{ll|c|c|c|c|c|c|c|c|c|c|c}
\hline \hline
 {\bf ~~} &     {\it ~~} &\rotatebox{90}{\bf Cloudy} & \rotatebox{90}{\bf COSTAR} & \rotatebox{90}{\bf Meudon} & \rotatebox{90}{\bf UCL\_PDR}  & \rotatebox{90}{\bf HTBKW} & \rotatebox{90}{\bf KOSMA-$\tau$} & \rotatebox{90}{\bf Aikawa} & \rotatebox{90}{\bf Leiden} & \rotatebox{90}{\bf Lee96mod} & \rotatebox{90}{\bf Sternberg} & \rotatebox{90}{\bf Meijerink} \\ \hline 
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf GEOMETRY} \\ 
\hline 
    {\bf } & { spherical} &          x &            &            &            &                 &          x &            &            &            &            &            \\ \hline
\par
    {\bf } & { plane-parallel, finite } &          x &            &          x &            &            x &            &            &          x &            &            &            \\ \hline
\par
    {\bf } & { plane-parallel, semi-infinite } &          x &            &          x &          x &              x &            &          x &          x &          x &          x &          x \\ \hline
\par
    {\bf } & { circumstellar disc} &          x &          x &            &            &                &            &            &         x   &            &            &            \\ \hline
\par
    {\bf } & { ensemble of clouds} &            &            &            &            &               &          x &            &            &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf DENSITY}    \\
\hline 
    {\bf } & { homogeneous} &          x &          x &          x &          x &              x &          x &          x &          x &          x &          x &          x \\ \hline
\par
    {\bf } & { density-law} &          x &       x     &          x &          x &               &          x &          x &          x &          x &          x &            \\ \hline
\par
    {\bf } & {  time dependent} &          x &            &            &         x   &                  &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { velocity field}  &          x &            &            &            &                &          x &            &            &            &            &            \\ \hline
\par
    {\bf } & {\it \hspace{2cm}v = const} &          x &            &            &            &                &          x &            &            &            &            &            \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}v= v(r,...)} &         x   &            &            &            &                 &            &            &            &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf RADIATION}      \\ 
\hline
    {\bf } & { isotropic radiation field} &            &            &          x &            &               &          x &            &            &            &            &            \\ \hline
\par
    {\bf } & { uni-directional radiation field} &          x &          x &          x &          x &              x &            &          x &          x &          x &          x &          x \\ \hline
\par
    {\bf } & { combination of isotropic+illuminating star} &            &            &          x &            &                   &            &            &            &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { Habing field} &          x &            &            &          x &              x &            &            &          x &            &            &          x \\ \hline
\par
    {\bf } & { Draine field} &          x &          x &          x &            &               x &          x &            &          x &            &          x &            \\ \hline
\par
    {\bf } & { optional star} &          x &            &          x &            &                 &            &            &         x   &            &            &            \\ \hline
\par
    {\bf } & { detailed SED} &          x &            &          x &            &                 &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { other} &         x   &            &            &            &                &            &          x &          x &          x &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { external radiation source} &          x &          x &          x &          x &              x &          x &          x &          x &          x &          x &          x \\ \hline
\par
    {\bf } & { internal radiation source} &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf CHEMISTRY}        \\ 
\hline
    {\bf } & { stationary chemistry} &          x &          x &          x &            &               x &          x &            &          x &            &          x &          x \\ \hline
\par
    {\bf } & { time-dependent chemistry} &          x &            &            &          x &                  &            &          x &            &          x &            &            \\ \hline
\par
    {\bf } & { advection flow} &         x   &            &            &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &              &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { UMIST95} &         x   &            &          x &          x &               &         x   &            &          x &            &          x &          x \\ \hline
\par
    {\bf } & { UMIST99} &         x   &            &            &          x  &              x &          x &            &            &            &         x  &  x          \\ \hline
\par
    {\bf } &  { NSM} &            &            &          x &            &            &            &          x &            &          x &            &            \\ \hline
\par
    {\bf } & { other database} &          x &          x &          x &            &                 &          x &            &          x &            &          x &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                  &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { fixed number of species} &          x &          x &            &          x &              x &            &          x &            &          x &          x &            \\ \hline
\par
    {\bf } & { variable number of species} &            &            &          x &            &                &          x &            &          x &            &            &          x \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}number of species} &         96 &         48 &            &        128 &             46 &            &        577 &            &        419 &         78 &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { PAH's included} &          x &            &          x &           &             x &          x &            &          x &            &            &          x \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { freeze-out on grains included} &          x &          x &          x &          x &                 &            &          x &            &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } &  H$_2${ formation on grains} &          x &          x &          x &          x &                x &          x &          x &          x &          x &          x &          x \\ \hline
\par
    {\bf } & { formation of other molecules on grains} &            &            &          x &          x &                  &            &          x &            &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { desorption mechanisms included} &            &          x &          x &            &                &            &          x &            &            &            &            \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}thermal desorption} &         x   &          x &            &            &                &            &        x    &            &            &            &            \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}photoevaporation} &            &            &          x &            &                 &            &            &            &            &            &            \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}CR spot heating} &         x   &            &          x &            &                &            &          x &            &            &            &            \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}grain-grain collisions} &            &            &          x &            &                  &            &            &            &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                 &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { metallicity included} &          x &          x &          x &          x &            x &          x &            &          x &            &          x &          x  \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf ISOTOPOMERS}      \\
\hline
    {\bf } &  $^{13}$C &          x &            &          x &            &             &          x &            &          x &            &            &          x  \\ \hline
\par
    {\bf } &   $^{17}$O &            &            &            &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } &  $^{18}$O &            &            &          x &            &                &          x &            &          x &            &            &            \\ \hline
\par
    {\bf } &     D &          x &            &          x &            &                  &            &          x &          x &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                    &            &            &            &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf THERMAL BALANCE}       \\
\hline
    {\bf } & { fixed temperature} &          x &         x   &          x &          x  &              &          x &            &          x  &          x &          x &          x  \\ \hline
\par
    {\bf } & { temperature determined from energy balance} &          x &          x &          x &          x &              x &          x &          x &          x &            &          x &          x \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf COOLING}        \\ 
\hline
    {\bf } & { gas-grain cooling} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & { radiative recombination} &          x &            &          x  &            &                 &          x &            &            &            &          x &            \\ \hline
\par
    {\bf } & { chemical balance} &            &            &          x &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } &     {\it } &            &            &            &            &                 &            &            &            &            &            &            \\ \hline
\par
    {\bf } & [OI]{  lines} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & $^{12}$CO{  rotational lines} &          x &          x &          x &          x &             x &          x &          x &          x &            &            &          x \\ \hline
\par
    {\bf } & $^{13}$CO{ rotational lines} &          x &            &          x &            &                &          x &          x &            &            &            &          x \\ \hline
\par
    {\bf } &  [CII]{ line} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & [CI]{  lines} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } &  [SiII] { lines} &          x &            &          x &            &              x &          x &            &            &            &          x &          x \\ \hline
\par
    {\bf } &  OH  { rotational lines} &            &            &          x &            &               x &          x &            &            &            &          x  &          x \\ \hline
\par
    {\bf } &  H$_2$O  { rotational lines} &            &            &          x &            &             x &          x &            &            &            &         x   &          x \\ \hline
\par
    {\bf } &  H$_2$ { rotational lines} &          x &            &          x &          x &             &            &            &            &            &         x   &          x  \\ \hline
\par
    {\bf } &  HD{ rotational lines} &          x &            &          x &            &                 &            &            &            &            &            &            \\ \hline
\par
    {\bf } &  [OI] 6300$\AA$ {metastable lines} &          x &          x &         x   &          x &               &            &            &         x   &            &         x   &          x  \\ \hline
\par
    {\bf } &  CH { rotational lines} &            &          x &            &            &               &            &            &            &            &          x  &            \\ \hline
\par
    {\bf } & { Ly $\alpha$ metastable lines} &          x &          x &            &          x &               &            &            &          x  &            &            &          x  \\ \hline
\par
    {\bf } &  Fe(24$\mu$,34$\mu$), [FeII](26$\mu$,35.4$\mu$) &          x &            &            &            &                x &            &            &            &            &          x  &         x   \\ \hline
\par
    {\bf } &  H$_2$ { (rot-vib)} &          x &            &          x  &            &            x &            &            &            &            &          x  &          x  \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf HEATING}   \\ 
\hline
    {\bf } &  H$_2$ { vibrational deexcitation} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}single line approx.} &          x &          x &            &          x &              x &            &          x &          x &            &            &          x \\ \hline
\par
    {\bf } & {\it \hspace{2cm}only n-levels, but no J} &            &            &            &            &                 &          x &            &            &            &          x &            \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}full rot-vib treatment} &          x &            &          x &            &                 &            &            &            &            &          x &            \\ \hline
\par
    {\bf } &  H$_2${ dissociation} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } &  H$_2${ formation} &          x &          x &          x &          x &              x &          x &            &          x &            &          x &          x  \\ \hline
\par
    {\bf } & { CR heating} &          x &          x &          x &          x &          x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & { PE heating} &          x &          x &          x &          x &            x &          x &          x &          x &            &          x &         x   \\ \hline
\par
    {\bf } & { XR heating} &          x &            &            &          x &           x &            &            &            &            &            &         x   \\ \hline
\par
    {\bf } & { PAH heating} &          x &            &          x &          x &            x &          x &            &          x &            &            &        x    \\ \hline
\par
    {\bf } & { photoionization} &          x &          x &          x  &          x &             &            &            &          x &            &            &          x \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}carbon ionization heating} &          x &          x &         x   &          x &               &            &            &          x &            &         x   &         x   \\ \hline
\par
    {\bf } & {\it  \hspace{2cm}other species (Si, etc.)} &          x &            &          x  &            &                  &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { gas-grain collisions} &          x &         x   &         x   &          x  &              &            &            &          x  &            &          x  &         x   \\ \hline
\par
    {\bf } & { turbulence heating} &          x &            &         x   &          x &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { chemical balance} &            &            &          x &          x  &               &            &            &          x &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf UV TRANSFER}      \\ 
\hline
    {\bf } & { solved self-consistently} &          x &          x &          x &          x &             x &          x &            &          x &            &          x &          x \\ \hline
\par
    {\bf } & { simple exponential attenuation} &          x &          x &          x &          x &              x &          x &          x &          x &          x &          x  &          x \\ \hline
\par
    {\bf } & { bi-exponential attenuation} &            &          x &            &            &                &            &            &            &            &          x &            \\ \hline
\par
    {\bf } & { full RT in lines} &            &            &          x &            &            &            &            &        x    &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf DUST}  \\ 
\hline
    {\bf } & { treatment of rad. transfer} &          x &            &          x &            &             x &          x &            &          x &            &          x &         x   \\ \hline
\par
    {\bf } & { grain size distribution} &          x &            &          x &          x &              &          x &            &            &            &           &            \\ \hline
\par
    {\bf } & { extinction/scattering law} &          x &          x &          x &          x &             x &          x &          x &          x &          x &          x &            \\ \hline
\par
    {\bf } & { albedo} &          x &            &          x &          x &               &            &            &          x &            &            &         x   \\ \hline
\par
    {\bf } & { scattering law} &          x &            &          x &           &              &            &            &          x &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf H$_2$ SHIELDING}     \\
\hline
    {\bf } & { shielding factors} &          x &          x &            &            &             x &            &          x &            &          x &         x   &          x  \\ \hline
\par
    {\bf } & { single line} &          x &            &            &          x &              &            &            &            &            &            &          x \\ \hline
\par
    {\bf } & { detailed solution} &          x &            &          x &            &            &          x &            &          x &            &           &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf CO SHIELDING}   \\ 
\hline
    {\bf } & { shielding factors} &         x   &          x &            &          x &            x &          x &          x &          x &          x &          x &          x  \\ \hline
\par
    {\bf } & { single line} &          x &            &            &            &               &            &            &          x &            &            &          x \\ \hline
\par
    {\bf } & { detailed solution} &            &            &          x &            &                &            &            &          x &            &            &            \\ \hline
\par
    {\bf } & { isotope selective photodissociation} &            &            &          x &            &               &          x &            &          x &            &            &          x  \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf UV PROFILE FUNCTION}   \\ 
\hline
    {\bf } & { Gaussian} &            &            &            &          x &           x &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { Voigt} &          x &            &          x &            &              &            &            &          x &            &          x &          x  \\ \hline
\par
    {\bf } &  { Box} &            &            &            &            &              &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { other} &            &            &            &            &               &            &            &            &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf RADIATIVE TRANSFER IN COOLING LINES}  \\
\hline
    {\bf } & { escape probability} &          x &          x &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & { other} &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { IR pumping} &          x &          x &            &           &              x &            &            &          x &            &            &          x  \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf OBSERVATIONAL LINES}  \\ 
\hline
    {\bf } & { self-consistent treatment with cooling} &          x &            &            &          x &                 &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { escape probability} &          x &            &            &          x  &              &      x      &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & { other} &            &            &          x &            &            &          x &            &            &            &            &            \\ \hline
\par
    {\bf } &  { H$_2$} &          x &            &          x &            &               &            &            &          x  &            &          x  &            \\ \hline
\par
    {\bf } &   { HD} &            &            &          x &            &                &            &            &           x &            &          x  &            \\ \hline
\par
    {\bf } & { $^{12}$CO  } &          x &            &          x &          x &              x &          x &          x &            &            &            &          x  \\ \hline
\par
    {\bf } & { $^{13}$CO} &          x &            &          x &            &                 &          x &            &            &            &            &           x \\ \hline
\par
    {\bf } & { C$^{18}$O} &            &            &          x &            &                &          x &            &            &            &            &            \\ \hline
\par
    {\bf } & { $^{13}$C$^{18}$O} &            &            &          x &            &              &          x &            &            &            &            &            \\ \hline
\par
    {\bf } &    { [OI]} &          x &            &          x &          x &              x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } &   { [CII]} &          x &            &          x &          x &               x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } &   { [CI]} &          x &            &          x &          x &             x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & { Si$^+$   } &          x &            &          x &            &          x &            &            &            &            &            &          x  \\ \hline
\par
    {\bf } &   { CS} &            &            &          x &            &              &            &            &            &            &            &          x  \\ \hline
\par
    {\bf } & { H$_2$O  } &            &            &            &            &             x &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { H$_2^{18}$O} &            &            &            &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { HCO$^+$} &            &            &          x &            &              x &         x  &            &            &            &            &         x   \\ \hline
\par
    {\bf } &   { OH} &            &            &            &            &               x &            &            &            &            &            &            \\ \hline
\par
    {\bf } &  { [SiI]} &          x &            &            &            &              x &         x   &            &            &            &            &            \\ \hline
\par
    {\bf } & { [SI],[SII]} &          x &            &            &            &               x &          x  &            &            &            &            &          x  \\ \hline
\par
    {\bf } & { [FeI], [FeII]} &          x &            &            &            &           x &            &            &            &            &            &        x    \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf COMPUTED LINE PROPERTIES}\\ 
\hline
    {\bf } & { resolved line profile} &            &            &          x &            &            x &          x &            &          x &            &            &            \\ \hline
\par
    {\bf } & { continuum rad./rad transfer in UV} &          x &            &          x &            &                &            &            &            &            &            &            \\ 
\par
    {\bf } & { line center intensities} &          x &            &          x &            &              &          x &            &          x  &            &            &            \\ \hline
\par
    {\bf } & { line integrated intensities} &          x &            &          x &          x &             x &          x &            &          x &            &            &          x \\ \hline
\par
    {\bf } & { optical depths} &          x &            &          x &          x &              x &          x &            &          x &            &            &          x  \\ \hline
\par
    {\bf } & { Gaussian line profile} &          x &            &          x &            &              x &          x &            &          x &            &            &          x  \\ \hline
\par
    {\bf } & { box line profile} &            &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { turbulence included} &          x &            &          x &            &               &          x &            &            &            &            &          x  \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf COLLISIONS} \\ 
\hline
    {\bf } &  { H-H} &          x &            &            &            &            x &            &            &            &            &          x &            \\ \hline
\par
    {\bf } & { H$_2$-H} &          x &            &          x &          x &              x &            &            &          x &            &          x &         x   \\ \hline
\par
    {\bf } & { H$_2$ - H+} &          x &            &          x &            &                &            &            &            &            &          x &            \\ \hline
\par
    {\bf } & { H$_2$ - e} &          x &            &         x   &            &                x &            &            &            &            &          x &            \\ \hline
\par
    {\bf } & { H$_2$ - H$_2$} &          x &            &          x &            &               x &            &            &          x &            &          x &         x   \\ \hline
\par
    {\bf } & { CO-H} &          x &          x &          x &          x &              x &            &            &          x &            &            &          x \\ \hline
\par
    {\bf } & { CO-H$_2$} &          x &          x &         x   &          x &             x &          x &            &          x &            &            &          x \\ \hline
\par
    {\bf } & { CO-e} &          x &          x &            &          x &                 &          x &            &            &            &            &          x \\ \hline
\par
    {\bf } & { CO - He} &            &            &          x &          x &                &            &            &            &            &            &         x   \\ \hline
\par
    {\bf } &  { C-H} &         x   &          x &        x    &          x &            x &          x &            &          x &            &          x &          x  \\ \hline
\par
    {\bf } & { C-H$_2$} &         x   &          x &         x   &          x &              x &          x &            &          x &            &            &        x    \\ \hline
\par
    {\bf } &  { C-e} &          x &            &         x   &          x &               &            &            &            &            &            &          x  \\ \hline
\par
    {\bf } & { C - He} &         x   &            &         x   &          x &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { C - H$_2$O} &           &            &            &            &                &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { C$^+$ - H} &          x &          x &          x &          x &              x &            &            &          x &            &            &         x   \\ \hline
\par
    {\bf } & { C$^+$ - H$_2$} &          x &          x &          x &          x &            x &          x &            &          x &            &            &          x \\ \hline
\par
    {\bf } & { C$^+$ - e} &          x &          x &            &          x &            x &          x &            &          x &            &            &         x   \\ \hline
\par
    {\bf } & { O - H} &          x &          x &          x &          x &            x &          x &            &          x &            &          x &          x  \\ \hline
\par
    {\bf } & { O - H$_2$} &          x &          x &          x &          x &             x &          x &            &          x &            &          x &          x \\ \hline
\par
    {\bf } & { O - H+} &          x &            &         x   &          x &              &            &            &          x &            &            &            \\ \hline
\par
    {\bf } & { O - e} &          x &          x &         x   &          x &              x &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { O - He} &          x &            &         x   &          x &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { OH - H} &           &            &            &            &              &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { OH - He} &            &            &            &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { OH - H$_2$} &           &            &            &            &              x &          x &            &            &            &            &            \\ \hline
\par
    {\bf } & { H$^-$ - H} &          x &            &            &            &              &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { H$_2$O - e} &           &            &            &            &              &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { H$_2$O - H} &           &            &            &            &               &            &            &            &            &            &         x   \\ \hline
\par
    {\bf } & { H$_2$O - H$_2$} &            &            &            &            &           x &            &            &            &            &            &        x    \\ \hline
\par
    {\bf } & { H$_2$O - O} &           &            &            &            &             &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { dust - H/H$_2$} &          x &            &            &            &             x &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { dust-any} &          x &            &            &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { Si$^+$ - H} &          x &            &          x &            &               &         x   &            &            &            &            &            \\ \hline
\par
    {\bf } & { HD - H} &            &            &          x &            &              &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { HD - H$_2$} &            &            &          x &            &               &            &            &            &            &            &            \\ \hline
\par
    {\bf } & { PAH-any} &          x &            &            &            &             x &            &            &            &            &            &            \\ \hline
\multicolumn{13}{c}{\rule[-3mm]{0mm}{8mm}\bf OUTPUT} \\
\hline
    {\bf } & { abundance profile over ($A_V$/depth)} &          x &          x &          x &          x &            x &          x &          x &          x &          x &          x &          x \\ \hline
\par
    {\bf } & { column density over ($A_V$/depth)} &          x &         x   &          x &         x   &                 &          x &            &            &            &          x &         x   \\ \hline
\par
    {\bf } & { temperature profile over ($A_V$/depth)} &          x &          x &          x &          x &              x &          x &          x &          x &            &          x &          x \\ \hline
\par
    {\bf } & { emitted intensities} &          x &            &          x &          x &           x &          x &            &          x &            &          x  &          x \\ \hline
\par
    {\bf } & { opacities at line center} &            &            &          x &            &            x &          x &            &          x &            &         x   &         x   \\ \hline
\par
    {\bf } & { heating and cooling rates over ($A_V$/depth)} &          x &            &          x &          x  &             &          x &            &         x   &            &          x &         x   \\ \hline
\par
    {\bf } & { chemical rates over ($A_V$/depth)} &            &            &          x &         x   &               &          x &            &         x   &            &          x &          x  \\ \hline
\par
    {\bf } & { excitation diagram of }H$_2$ &          x &            &          x &            &                &            &            &         x   &            &          x  &            \\ \hline
\end{tabular}
\end{table}