[
  {
    "gtc_id":	"G44689NW",
    "iupac_condensed":	"Gal(a1-2)[Gal(b1-4)Gal(b1-6)]Glc(a1-3)Man(a1-3)Gal(b1-",
    "motif":	"[{\"label\":\"Galactosylceramide\",\"id\":\"G65889KE\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	990.33
  },
  {
    "gtc_id":	"G08312IV",
    "iupac_condensed":	"GlcA(b1-4)GlcA(b1-4)Glc",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	532.13
  },
  {
    "gtc_id":	"G11808GG",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]