[?-L-GalpNAc-(1->?)-?-D-GlcpNAc-(1->?)-alpha-L-Manp-(1->?)-[?-L-Manp-(1->?)-?-L-Manp-(1->?)-alpha-L-Manp-(1->?)]-beta-L-Manp-(1->4)]-beta-D-GlcpNAc-(1->4)-?-D-GlcpNAc(1->