[
  {
    "gtc_id":	"G08781MF",
    "iupac_condensed":	"Ara(b1-2)Rha(a1-3)Glc(b1-",
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	458.16
  },
  {
    "gtc_id":	"G39326SA",
    "iupac_condensed":	"Glc(a1-6)Glc(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	342.12
  }
]