[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][C][C][Branch1][Ring2][C][Ring1][=Branch1][C][Ring1][Ring2][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a colorless liquid with a sweet, turpentine-like odor. Floats on water. (USCG, 1999)"}]