alpha-L-Fucp-(1->2)-beta-D-Galp-(1->3)[?-D-Galp-(1->?)[?-L-Fucp-(1->?)]-beta-D-GlcpNAc-(1->3)-?-D-Galp-(1->?)[?-L-Fucp-(1->?)]-beta-D-GlcpNAc-(1->6)]-D-GalNAc(?->