preferred_name: beta-lactose + H2O => beta-D-galactose + beta-D-glucose
preferred_name_lc: beta-lactose + h2o => beta-d-galactose + beta-d-glucose
label: beta-lactose + H2O => beta-D-galactose + beta-D-glucose
label_lc: beta-lactose + h2o => beta-d-galactose + beta-d-glucose