[{"from": "human", "value": "Generate a molecule based on this description. The molecule is an iodobenzoic acid with a single iodo substituent placed at the 3-position."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][=Branch2][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][I][C][=Branch1][C][=O][O]"}]