?-L-Arap-(1->?)-?-D-GlcpNAc-(1->?)[?-D-GalpA-(1->?)]-?-D-GalpA-(1->?)[?-D-Manp4lSLac-(1->?)-?-D-Manp-(1->?)-?-D-Glcp-(1->?)]-L-Fuc(?->