[alpha-D-Glcp-(1->4)-[alpha-D-Glcp-(1->4)-alpha-D-Rhap-(1->3)-alpha-D-Rhap-(1->3)]-beta-D-GlcpNAc-(1->2)-alpha-D-Rhap-(1->2)-alpha-D-Rhap-(1->3)-alpha-D-Rhap(1-]-