[{"from": "human", "value": "Generate a molecule based on this description. Widely used selective herbicides worldwide in corn, soybean and other crop cultures. Elevated concentrations of these herbicides and their degradation products have been detected in surface and groundwater. (A252)"}, {"from": "gpt", "value": "[C][C][C][=C][Branch1][O][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][C][N][Branch1][Branch2][C][N][C][=Branch1][C][=O][C][C][=Branch1][C][=O][C][Cl]"}]