preferred_name: an N-acyl-D-amino acid + H2O => a D-alpha-amino acid + a carboxylate
preferred_name_lc: an n-acyl-d-amino acid + h2o => a d-alpha-amino acid + a carboxylate
label: an N-acyl-D-amino acid + H2O => a D-alpha-amino acid + a carboxylate
label_lc: an n-acyl-d-amino acid + h2o => a d-alpha-amino acid + a carboxylate