label: N-acetyl-beta-D-galactosamine + a beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide => a ganglioside GA2 + H2O
label_lc: n-acetyl-beta-d-galactosamine + a beta-d-galactosyl-(1->4)-beta-d-glucosyl-(1<->1)-ceramide => a ganglioside ga2 + h2o