Full distribution of the PhotoIonization Model Probability Density Functions (PIM-PDFs) of the NEOGAL star forming (blue), NEOGAL AGN (purple), BPASS single (yellow), and BPASS binary (green) photoionization models (we note that the BPASS models fully overlap in initial parameters sampled). It is these models that are used for the parameter inference based on the observational constraints from the UV emission line detections presented in Section 11. The actual values of the sampled individual parameters are provided in Table 5.