[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an obsolete insecticide and nematicide once used mainly to control soil insects on turf and some crops. It functions as an acetylcholinesterase (AChE) inhibitor."}, {"from": "gpt", "value": "[C][C][O][P][=Branch1][C][=S][Branch1][Ring2][O][C][C][O][C][=N][N][Branch1][Branch2][C][=Branch1][Ring2][=N][Ring1][Branch1][Cl][C][Branch1][C][C][C]"}]