first_spec_class	second_spec_class	prob_first_spec_class	prob_second_spec_class	taxonomy	wavelength	author	ref	method
S	K	0.470000	0.430000	Mahlke	VIS	Mahlke	2022A&A...665A..26M	SPEC
Xe				Bus	VIS	Bus	2002Icar..158..146B	SPEC