[beta-D-GlcpNAc6S-(1->6)-[beta-L-Galp-(1->4)-beta-D-GlcpNAc-(1->6)-[beta-L-Galp-(1->3)-alpha-D-Fucp-(1->2)-beta-L-Galp-(1->3)]]-?-L-GalpNAc(1-]-