[
  {
    "gtc_id":	"G57321FI",
    "iupac_condensed":	"GalNAc(a1-",
    "motif":	"[{\"label\":\"Tn antigen\",\"id\":\"G57321FI\"}]",
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G77097DQ",
    "iupac_condensed":	"Fuc2Me(a1-2)Gal(b1-3)GalNAc(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	543.22
  },
  {
    "gtc_id":	"G48512WX",
    "iupac_condensed":	"Fuc2Me(a1-2)Gal4Me(b1-3)GalNAc-ol",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	559.25
  },
  {
    "gtc_id":	"G95856SS",
    "iupac_condensed":	"Fuc2Me(a1-2)Gal(b1-3)GalNAc-ol",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	545.23
  },
  {
    "gtc_id":	"G54675PB",
    "iupac_condensed":	"Fuc2Me(a1-2)Gal4Me(b1-3)GalNAc(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	557.23
  }
]