label: N-acetyl-D-glucosamine + UDP-alpha-D-galactose => beta-D-galactosyl-(1->4)-N-acetyl-D-glucosamine + UDP + H(+)
label_lc: n-acetyl-d-glucosamine + udp-alpha-d-galactose => beta-d-galactosyl-(1->4)-n-acetyl-d-glucosamine + udp + h(+)