preferred_name: a carboxylate + NH4(+) => an aliphatic nitrile + 2 H2O
preferred_name_lc: a carboxylate + nh4(+) => an aliphatic nitrile + 2 h2o
label: a carboxylate + NH4(+) => an aliphatic nitrile + 2 H2O
label_lc: a carboxylate + nh4(+) => an aliphatic nitrile + 2 h2o