The 9–10 μm and 10.1–11.5 μm segments of the JWST-MIRI MRS spectra of GM Aur (blue) and J1615 (black). H I and H₂ lines are labeled with vertical gray dashed lines. The locations of OH emission lines are indicated with vertical pink lines alongside their associated quantum number. ﹩{A}^{{\prime} }﹩ and A″ symmetry lines are labeled, with the former being a strong indicator of prompt emission. The higher detection rate of OH lines in GM Aur over J1615 (see Section 3.1.5) suggests that the photodissociation of H₂O into OH is more important in the disk of GM Aur than J1615.