[
  {
    "gtc_id":	"G99488QB",
    "iupac_condensed":	"Xyl(b1-2)Glc(b1-3)[Man(a1-2)Man(a1-P-6)]GalNAc(a1-5)Kdo8PEtn(?2-6)GlcN(b1-6)GlcN(a1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1584.46
  },
  {
    "gtc_id":	"G31383WG",
    "iupac_condensed":	"Xyl(b1-2)Glc(b1-3)[Man(a1-2)Man(a1-P-6)]GalNAc(a1-5)Kdn8PEtn",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1292.33
  },
  {
    "gtc_id":	"G33590XD",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]