label: a beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide + H2O = lactose + an N-acyl-sphingoid base
label_lc: a beta-d-galactosyl-(1->4)-beta-d-glucosyl-(1<->1)-ceramide + h2o = lactose + an n-acyl-sphingoid base