[
  {
    "gtc_id":	"G23376ST",
    "iupac_condensed":	"Man(b1-4)GlcNAc(b1-4)[Fuc(a1-3)][Fuc(a1-6)]GlcNAc(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	878.34
  }
]