beta-D-GlcpNAc-(1->6)-alpha-D-Glcp-(1->2)-alpha-D-Glcp-(1->3)[alpha-D-Galp-(1->6)]-alpha-D-Glcp-(1->3)[L-gro-alpha-D-manHep?-(1->7)]-L-gro-alpha-D-manHep?-(1->3)-L-gro-D-manHep(?->