[
  {
    "gtc_id":	"G21553SY",
    "iupac_condensed":	null,
    "motif":	"[{\"label\":\"Glucosylceramide\",\"id\":\"G71142DF\"}]",
    "subsumption":	null,
    "mass":	null
  },
  {
    "gtc_id":	"G13934NI",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  },
  {
    "gtc_id":	"G16789ZI",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	null
  },
  {
    "gtc_id":	"G52482NM",
    "iupac_condensed":	"GlcN(b1-4)GlcNAc(b1-4)[Fuc2Me4Ac(a1-6)]GlcNAc",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	787.32
  },
  {
    "gtc_id":	"G94876DL",
    "iupac_condensed":	"GlcN(b1-4)GlcNAc(b1-4)GlcNAc(b1-4)GlcNAc(b1-4)[Fuc2Me4Ac(a1-6)]GlcNAc",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1193.48
  },
  {
    "gtc_id":	"G26115GZ",
    "iupac_condensed":	"GlcN(b1-4)GlcNAc(b1-4)GlcNAc(b1-4)GlcNAc(b1-4)[Fuc2Me3S(a1-6)]GlcNAc",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1231.43
  },
  {
    "gtc_id":	"G75652WU",
    "iupac_condensed":	"GlcN(b1-4)GlcNAc(b1-4)GlcNAc(b1-4)GlcNAc(b1-4)[Fuc2Me(a1-6)]GlcNAc(?1-",
    "motif":	null,
    "subsumption":	"Linkage-defined saccharide",
    "mass":	1151.47
  }
]