[
  {
    "gtc_id":	"G25214MO",
    "iupac_condensed":	"Glc(b1-4)Glc(b1-4)Glc(b1-3)Glc(b1-4)Glc(b1-",
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	828.27
  },
  {
    "gtc_id":	"G44166UO",
    "iupac_condensed":	null,
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]