alpha-L-IdopA2S-(1->?)-beta-L-GalpNAc4S-(1->?)-beta-D-GlcpA-(1->?)-beta-L-GalpNAc6S-(1->?)-?-?-GlcpA-(1->?)-beta-L-GalpNAc6S-(1->?)-?-L-IdopA(1->