Zoom in on the molecular features of the maximum likelihood model for CO, C₂H₄, CH₃, and NH₃. The upper panel shows the wavelength region from 4.9 μm to 5.1 μm, where CO potentially emits. The middle ranks and lower left panel display three regions that exhibit NH₃ emission and a C₂H₄ quasi-continuum. At the lower right panel (from 16.4 μm to 16.6 μm) CH₃ emission can be seen. The black line shows the JWST/MIRI spectrum of Sz 28 with the blue line indicating the continuum, visible where no molecular emission is present.