[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is useful as a contrast medium in cholecystography."}, {"from": "gpt", "value": "[C][C][C][Branch2][Ring1][Ring2][C][C][=C][Branch1][=C][C][=Branch1][#Branch2][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][I][I][N][I][C][=Branch1][C][=O][O]"}]