[beta-L-Galp-(1->4)-[alpha-D-GlcpA4Me-(1->4)-beta-L-Galp-(1->4)-[2)-alpha-D-Rhap-(1->4)-alpha-L-GalpA-(1->2)-alpha-D-Rhap-(1->4)]-alpha-L-GalpA-(1->2)-alpha-D-Rhap-(1->]-