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