[
  {
    "gtc_id":	"G59624GO",
    "iupac_condensed":	"Neu5Ac(a2-3)Gal(b1-4)GlcNAc(b1-4)Man",
    "motif":	"[{\"label\":\"Polysialic acid\",\"id\":\"G00065MO\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	836.29
  },
  {
    "gtc_id":	"G97531BE",
    "iupac_condensed":	"Neu5Ac(a2-3)Gal(b1-4)GlcNAc(b1-4)Man(?1-",
    "motif":	"[{\"label\":\"Mannose\",\"id\":\"G70323CJ\"},{\"label\":\"O-Mannose\",\"id\":\"G70323CJ\"},{\"label\":\"Polysialic acid\",\"id\":\"G00065MO\"}]",
    "subsumption":	"Linkage-defined saccharide",
    "mass":	836.29
  }
]