preferred_name: a long-chain fatty acid + L-glutamate => an N-(long-chain-fatty-acyl)-L-glutamate + H2O
preferred_name_lc: a long-chain fatty acid + l-glutamate => an n-(long-chain-fatty-acyl)-l-glutamate + h2o
label: a long-chain fatty acid + L-glutamate => an N-(long-chain-fatty-acyl)-L-glutamate + H2O
label_lc: a long-chain fatty acid + l-glutamate => an n-(long-chain-fatty-acyl)-l-glutamate + h2o