first_spec_class	second_spec_class	prob_first_spec_class	prob_second_spec_class	taxonomy	wavelength	author	ref	method
C		0.10		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT
X				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT