Examples of the 5.3–12 μm spectral fitting. Left panels: retrieved mid-IR spectra and the estimated absorption-free continua. Middle panels: Gaussian fits to the 23 μm features. Results of the 5.3–12 μm spectral fitting are shown in the right panels in which the green solid lines show the best-fit models, the absorption components of which are composed of amorphous pyroxene (red lines; F_hot, AGN exp(−τ_pyr) in Eq. (1)), amorphous olivine (blue lines; F_hot, AGN exp(−τ_ol)), and crystalline forsterite (orange lines; F_hot, AGN exp(−τ_cry)). Also, the black dashed, dotted, and gray solid lines represent the absorption-free continuum (F_hot, AGN), the unobscured continuum (F_hot, unobs), and the PAH and line emission (F_PAH + F_line) components, respectively. We note that the unobscured continuum component falls below the plotted area for IRAS 12127−1412 and IRAS 02530+0211.