[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an organophosphate acetylcholinesterase inhibitor used as an insecticide. It is extremely toxic to mammals. (L1195, L1655)"}, {"from": "gpt", "value": "[C][C][C][S][P][=Branch1][C][=O][Branch1][Ring2][O][C][C][S][C][C][C]"}]