[
  {
    "gtc_id":	"G81189IV",
    "iupac_condensed":	"Glc(a1-3)Glc(a1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	342.12
  },
  {
    "gtc_id":	"G05740LL",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G98598EB",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]