3-O-beta-galactopyranosyl-(1-2)-(beta-D-xylopyranosyl-(1-3))-beta-D-glucuronopyranosyl-gypsogenin-28-O-beta-D-xylopyranosyl-(1-3 )-beta-D-xylopyranosyl-(1-4)-alpha-L-rhamnopyranosyl-(1-4)-(alpha-L-rhamnopyranosyl-(1-3))-beta-D-fucopyranoside