[
  {
    "gtc_id":	"G90588AV",
    "iupac_condensed":	"Glc(b1-2)[Glc(b1-3)]GlcA(b1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	518.15
  },
  {
    "gtc_id":	"G94648XC",
    "iupac_condensed":	"Glc(b1-2)[Glc(b1-3)]GlcA6Me(b1-",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	532.16
  }
]