[
  {
    "gtc_id":	"G12037KS",
    "iupac_condensed":	"D-Araf(b1-2)D-Araf(a1-3)[D-Araf(b1-2)D-Araf(a1-5)]D-Araf(a1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	678.22
  },
  {
    "gtc_id":	"G30321MJ",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G27434VY",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]