label: alanine / cysteine / glycine / histidine / isoleucine / leucine / lysine / methionine / phenylalanine / phosphoric acid / proline / serine / threonine / tryptophan / valine
label_lc: alanine / cysteine / glycine / histidine / isoleucine / leucine / lysine / methionine / phenylalanine / phosphoric acid / proline / serine / threonine / tryptophan / valine