[alpha-L-Galp-(1->4)-beta-L-Galp-(1->4)-beta-D-Glcp-(1->4)-alpha-D-GlcpNAc-(1->2)-L-gro-alpha-D-manHepp-(1->3)-L-gro-alpha-D-manHepp-(1->5)]-D-gro-L-3-deoxy-galNon2ulo-onic(?->