[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a phosphonic acid having a 2-methylaminoethyl group attached to the phosphorus. It is functionally related to a phosphonic acid."}, {"from": "gpt", "value": "[C][N][C][C][P][=Branch1][C][=O][Branch1][C][O][O]"}]