[
  {
    "gtc_id":	"G03220GG",
    "iupac_condensed":	"GalA(a1-4)GalA(a1-4)GalA(a1-4)GalA(a1-2)Rha(a1-4)GalA(a1-2)Rha(a1-4)GalA(a1-2)GalA(a1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	1542.35
  },
  {
    "gtc_id":	"G47048RR",
    "iupac_condensed":	null,
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]