[
  {
    "gtc_id":	"G71320MO",
    "iupac_condensed":	"Man(b1-4)Man(b1-4)GlcA(a1-2)[Gal(b1-4)]GlcA(a1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	856.23
  }
]