beta-D-GlcpA-(1->2)[beta-D-Xylp-(1->2)[beta-D-GlcpA-(1->2)[beta-D-Xylp-(1->2)[[3)-alpha-D-Manp-(1->3)]-alpha-D-Manp-(1->3)]-alpha-D-Manp-(1->3)]-alpha-D-Manp-(1->3)-alpha-D-Manp-(1->3)]-alpha-D-Manp-(1->]n