[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is conjugate base of 2-aminobut-2-enoic acid. It is a conjugate base of a 2-aminobut-2-enoic acid and a 2-aminobut-2-enoic acid zwitterion."}, {"from": "gpt", "value": "[C][/C][=C][Branch1][=Branch1][/C][=Branch1][C][=O][O-1][\\N]"}]