label: a neolactoside nLc6Cer + UDP + H(+) => a neolactoside IV(3)-beta-GlcNAc-nLc4Cer + UDP-alpha-D-galactose
label_lc: a neolactoside nlc6cer + udp + h(+) => a neolactoside iv(3)-beta-glcnac-nlc4cer + udp-alpha-d-galactose