[beta-D-Glcp4Fo-(1->4)-[beta-D-Glcp4Fo-(1->4)-[4)-alpha-D-GlcpA-(1->3)-alpha-D-Fucp2Ac-(1->3)-beta-D-Glcp-(1->4)]-alpha-D-GlcpA-(1->3)-alpha-D-Fucp-(1->3)-beta-D-Glcp-(1->]-