?-D-GlcpNAc?Ac-(1->2)-?-?-Hepp3PEtn-(1->3)[beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp-(1->4)-?-D-Glcp-(1->4)]-?-?-Hepp-(1->5)-D-Kdo(?->