[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an L-polyhomomethionine in which there are four methylene groups between the alpha-carbon and sulfur atoms. It is a L-polyhomomethionine and a dihomomethionine. It is a tautomer of a L-dihomomethionine zwitterion."}, {"from": "gpt", "value": "[C][S][C][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]