?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-GlcpA-(1->?)-?-D-Manp-(1->?)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-GlcpA-(1->?)-D-Man(?->