[
  {
    "gtc_id":	"G75632XE",
    "iupac_condensed":	"Gal(b1-4)GlcNAc(b1-3)Gal(b1-4)GlcNAc(b1-3)Gal(b1-4)GlcNAc(b1-3)Gal(b1-4)GlcNAc",
    "motif":	"[{\"label\":\"I' antigen\",\"id\":\"G46055MA\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1478.54
  },
  {
    "gtc_id":	"G84575BO",
    "iupac_condensed":	"Gal(b1-4)GlcNAc(b1-3)[Gal(b1-4)GlcNAc(b1-6)]Gal(b1-4)GlcNAc(b1-3)Gal(b1-4)GlcNAc",
    "motif":	"[{\"label\":\"I' antigen\",\"id\":\"G56045WU\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1478.54
  }
]