[
  {
    "gtc_id":	"G54686ZX",
    "iupac_condensed":	"GalA(a1-3)[GlcNAc(b1-4)]GalNAc(b1-3)Gal",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	762.25
  },
  {
    "gtc_id":	"G53022CD",
    "iupac_condensed":	"GalA(a1-3)[GlcNAc(b1-4)]GalNAc",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	600.2
  },
  {
    "gtc_id":	"G55589DR",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  },
  {
    "gtc_id":	"G42214IC",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  },
  {
    "gtc_id":	"G94673OD",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  }
]