Spitzer continuum-subtracted spectra of H 1-8, H 1-43, and K 5-4 in wavelength ranges from 5 to 14 μm and 15 to 35 μm. Prominent forbidden lines and H I features are marked. Dotted red, blue, and green lines indicate the positions of the UIE bands (6.2, 7.7, 8.6, 11.2/11.3, and 11.8 μm), broad silicate features at 18.0, 23.7, 27.6, 29.6, 30.6, 32.8, and 34.1 μm (Molster et al. 2002), and expected positions of prominent PAH bands (6.2, 7.7, 8.7, 11.2-11.3, and 16.4 μm; Sadjadi et al. 2015), respectively.