[
  {
    "gtc_id":	"G83954IW",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  },
  {
    "gtc_id":	"G79295GY",
    "iupac_condensed":	"Xyl(b1-4)Xyl(b1-4)Xyl(b1-4)Xyl",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	546.18
  },
  {
    "gtc_id":	"G10019QJ",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]