[
  {
    "gtc_id":	"G18087QA",
    "iupac_condensed":	"Araf(a1-4)GlcA(b1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	326.08
  },
  {
    "gtc_id":	"G81448VI",
    "iupac_condensed":	"Araf(a1-4)GlcA6Me(b1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	340.1
  },
  {
    "gtc_id":	"G39875GA",
    "iupac_condensed":	"GlcA(b1-3)[Xyl(b1-2)]Glc(b1-",
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	488.14
  }
]