The posterior distributions of OH* and O* for the initial model using Rh(111) showed much stronger binding energies than the priors supplied. Given that OH* binds stronger (more negative binding energy) on the (211) facet than (111) as reported by Yang et al., the possibility of these species having an alternative binding site was considered. As such, the DFT, LSR, and ML models were updated with calculations for these species on their corresponding lowest energy binding site on Rh(211). Figure shows a comparison of the priors and posteriors using both the Rh(111) and Rh(211) binding energies for these species. this paper have been calculated using the method described in Section 2.2.4, which uses the enthalpy of formation at 0 K from the ATCT for the gas phase precursor. This was done so that the priors and posteriors for all three methods could be compared using the same gas phase reference, but this method does mean the binding energies reported will be o↵set from values reported from other sources. and -3.26 eV. All species binding energies calculated using the DFT calculated electronic energy can be found in the supplementary material.