first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C C 0.4454 0.2930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S C 0.5932 0.2930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT