[
  {
    "gtc_id":	"G51023SK",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G37396DH",
    "iupac_condensed":	"GalA(?1-4)Glc(?1-4)Gal(?1-3)[Gal(?1-4)Glc(?1-5)]Galf(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1004.31
  },
  {
    "gtc_id":	"G22474OA",
    "iupac_condensed":	"GalA(?1-4)Gal(?1-4)Gal(?1-3)Gal",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	680.2
  }
]