We used the SG rules to identify SAAs in a larger candidate space of SAAs compared to the training set. The chosen candidate space contains 20 SA chemical elements (yellow elements in Fig. ). The surface terminations, and adsorption sites considered in this analysis are shown in Table . We focused on bridge adsorption sites, as this site geometry is present in all of the surface terminations within σ selected . More specifically, three bridge sites were taken into account: the long bridge in Cu(110), and the bridge sites of Zn(0001) and Pd(100). In total, 60 surface sites are taken into account in this screening.