Spectra of the molecular and atomic species detected in BRI 0952, prior to correction for gravitational lensing. The top panel shows the observed spectra. Single Gaussian fits are shown in red and double Gaussian fits are shown in blue. The dashed gray line represents the rms. The bottom panel shows the residuals from the Gaussian fits where the red corresponds to single fits and the blue to fits using two Gaussian profiles and the gray shaded region represents the rms. We fit the OH spectra with two single Gaussian components where the systemic velocities are fixed (see Section 3.2.3).