[{"from": "human", "value": "Describe this molecule. [C][=C][Branch1][#Branch2][C][C][C][C][C][=Branch1][C][=O][O][C][=Branch1][C][=C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a branched-chain fatty acid."}]