[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a piperazinecarboxylic acid. It is functionally related to a carbamic acid."}, {"from": "gpt", "value": "[C][C][N][Branch1][=Branch1][C][C][N][Ring1][=Branch1][C][=Branch1][C][=O][O]"}]