[{"from": "human", "value": "Describe this molecule. [C][Branch1][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][C][N][O]"}, {"from": "gpt", "value": "The molecule is an amino acid zwitterion obtained from N(5)-hydroxy-L-ornithine by transfer of a proton from the alpha-carboxy group to the amino group. It is a tautomer of a N(5)-hydroxy-L-ornithine."}]