[
  {
    "gtc_id":	"G00440OL",
    "iupac_condensed":	"Rha(a1-6)Glc(b1-",
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	326.12
  },
  {
    "gtc_id":	"G64799PD",
    "iupac_condensed":	"Man(a1-6)[Xyl(b1-2)]Man(b1-4)GlcNAc(b1-4)[Fuc(a1-3)]GlcNAc(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1026.38
  }
]