[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a colorless liquid. Sinks in water. (USCG, 1999)"}, {"from": "gpt", "value": "[C][=C][C][=Branch1][=Branch2][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][Cl][Cl]"}]