[alpha-L-Manp-(1->6)-[?-L-Galp-(1->?)-?-L-Galp-(1->?)-beta-D-GlcpNAc-(1->4)-alpha-L-Manp-(1->3)-beta-L-Manp-(1->4)]]-beta-D-GlcpNAc-(1->4)-beta-D-GlcpNAc(1->