label: a beta-D-Gal-(1->3)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer(d18:1(4E)) + GDP-beta-L-fucose = a III(4)-a-Fuc-Lc4Cer(d18:1(4E)) + GDP + H(+)
label_lc: a beta-d-gal-(1->3)-beta-d-glcnac-(1->3)-beta-d-gal-(1->4)-beta-d-glc-(1<->1')-cer(d18:1(4e)) + gdp-beta-l-fucose = a iii(4)-a-fuc-lc4cer(d18:1(4e)) + gdp + h(+)