[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a white to yellow solid with a weak aromatic odor. Sinks in water. (USCG, 1999)"}, {"from": "gpt", "value": "[C][=C][C][=C][C][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][C][Ring1][#Branch2][=C][Ring1][=C]"}]