\begin{table}%t2
%\centering
\par
\caption {\label{interp}Theoretical interpretations of observed features and consequences for helium in CRUMP stars.
%dilution factor, ISM the interstellar medium.
}
{
	%\centering
\par
		\begin{tabular}{clllc}
		\hline
		\hline 
		\noalign{\smallskip}
$N$ & Observed feature  & Hypothesis  &  Theoretical interpretation   & He-rich \\
	               \hline \\[-2mm]
1 &$\epsilon$(Li) $<$ Spite     & no in-situ depl.           & $D < \sim 0.5$                                                                  &  YES                                      \\
    &                                                     &                                       &                                                                                             &                                           \\         
2 &$\epsilon$(Li) $<$ Spite     & strong in-situ depl.    & $D > 1$                                                                            & YES   for $D< \sim 4$          \\
   &                                                      &                                        &                                                                                           &                                            \\   
3 &$\epsilon$(Li)  $\sim$ Spite &                                     & $D > 1$, in situ Li- depletion                                         & YES   for $D< \sim 4$        \\
  &                                                       &                                       &                                                                                           &                                            \\  
		   &     & & &  \\                                                                                      
4 & $^{12}$C/	$^{13}$C $<$ ISM                                   &                                                                                            & H- and He-burn. and no He-only                          &  ?                                          \\
5 & $^{12}$C/	$^{13}$C $>$ ISM                                   &                                                                                            & H- and He-burn. plus He-only, $D \gg 1$           &  NO                                      \\
		   &     & & &  \\
6 & [N/H] $>$ 1.4+[Fe/H]                                                    &  0 $\le$ ISM [CNO/Fe]~$\le$~0.6                                      & source material is primary N rich                  & ?                                            \\
		   &     & & &  \\   
7 & [N/C] and [N/O]~$>$~0                                                         &                                                                                              & H- and He-burn.  and no He-only                        & ?                                          \\     
8  & [N/C] and [N/O]~$<$~0                                                        &                                                                                              & H- and He-burn. plus He-only, $D \gg 1$           &  NO                                    \\
		   &     & & &  \\
9& [Na/Ne] and [Al/Mg]~$>$~0                                                 &                                                                                              & H- and He-burn. and no He-only, small $D$               & YES                            \\ 
10& [Na/Ne] and [Al/Mg]~$<$~0                                              &                                                                                               &  H- and He-burn. plus He-only, $D  \gg 1$    &  NO                                \\
		   &     & & &   \\
11& [Al/Fe]~$>$~0                                                              &  ISM [Mg/Fe] $\sim$ 0                                                         &  H- and He-burn.                                                     &  ?                                    \\                
12&[Al/Fe]~$<$~0                                                                &                                                                                                & [Al/Fe]~$<$~0 in  $M_{\rm source}$, $D \gg 1$   & NO                                \\
\hline   
		\end{tabular}						}
		\vspace*{2mm}
\end{table}