[
  {
    "gtc_id":	"G49226QX",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Topology",
    "mass":	254.1
  },
  {
    "gtc_id":	"G57847GW",
    "iupac_condensed":	"Glc6Ac(b1-",
    "motif":	null,
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G03015RV",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	416.15
  },
  {
    "gtc_id":	"G68180ZF",
    "iupac_condensed":	"Glc(a1-1a)[Xyl(b1-2)Rha(a1-3)Glc(b1-3)Rha(a1-3)]Glc6Me",
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	942.34
  }
]