preferred_name: lactose + H2O => D-glucose + D-galactose (Canis familiaris)
preferred_name_lc: lactose + h2o => d-glucose + d-galactose (canis familiaris)
label: lactose + H2O => D-glucose + D-galactose (Canis familiaris)
label_lc: lactose + h2o => d-glucose + d-galactose (canis familiaris)