[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a member of the class of ureas that is urea in which one of the hydrogens has been replaced by a carboxy group. It is a conjugate acid of a urea-1-carboxylate."}, {"from": "gpt", "value": "[C][=Branch1][C][=O][Branch1][C][N][N][C][=Branch1][C][=O][O]"}]