[
  {
    "gtc_id":	"G04762ZR",
    "iupac_condensed":	"Kdn(a2-3)[Kdn(a2-6)]GalNAc-ol",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	723.24
  },
  {
    "gtc_id":	"G72458LI",
    "iupac_condensed":	"Kdn(a2-3)[Kdn(a2-6)]GalNAc(a1-",
    "motif":	"[{\"label\":\"Tn antigen\",\"id\":\"G57321FI\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	721.23
  },
  {
    "gtc_id":	"G78703NH",
    "iupac_condensed":	"Kdn(a2-6)GalNAc(a1-",
    "motif":	"[{\"label\":\"Tn antigen\",\"id\":\"G57321FI\"}]",
    "subsumption":	"Fully-defined saccharide",
    "mass":	471.16
  }
]