[
  {
    "gtc_id":	"G02727LW",
    "iupac_condensed":	"GlcA4Me(a1-2)Xyl(b1-4)Xyl(b1-4)Xyl",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	604.19
  },
  {
    "gtc_id":	"G18415FN",
    "iupac_condensed":	"Glc4Me(a1-2)Xyl(b1-4)Xyl(b1-4)Xyl",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	590.21
  }
]