preferred_name: a ganglioside Ac-O-8-GD1a (d18:1(4E)) <=> a ganglioside Ac-O-9-GD1a (d18:1(4E))
preferred_name_lc: a ganglioside ac-o-8-gd1a (d18:1(4e)) <=> a ganglioside ac-o-9-gd1a (d18:1(4e))
label: a ganglioside Ac-O-8-GD1a (d18:1(4E)) <=> a ganglioside Ac-O-9-GD1a (d18:1(4E))
label_lc: a ganglioside ac-o-8-gd1a (d18:1(4e)) <=> a ganglioside ac-o-9-gd1a (d18:1(4e))