[{"from": "human", "value": "What can you tell me about this molecule? [C][=Branch1][=Branch2][=C][C][=C][C][=Branch1][C][=O][O][C][=C][C][=C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a polyunsaturated dicarboxylic acid."}]