alpha-D-Manp-(1->2)-alpha-D-Manp-(1->2)-alpha-D-Manp-(1->3)[alpha-D-Manp-(1->3)[alpha-D-Manp-(1->2)-alpha-D-Manp-(1->6)]-alpha-D-Manp-(1->6)]-alpha-D-Manp-(1->4)-?-D-GlcpNAc(1->