Gal(a1-7/8)[GlcNAc(a1-2)Glc(a1-2)Glc(a1-3)[Gal(a1-6)]Glc(a1-3)[Gro(a1-7)]Gro(a1-3)[Gro(a1-7)]Gro(a1-4/5)Kdo(?2-?)]Kdo(2-]