[
  {
    "gtc_id":	"G99991IU",
    "iupac_condensed":	"Glc(a1-4)[Glc(a1-6)]Glc(a1-4)Glc(a1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	666.22
  }
]