[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][C][C][/C][=C][/C][=C][/C][Branch1][O][C][/C][=C][/C][=C][/C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a polyunsaturated fatty acid that is hexadeca-2,4,8,10-tetraenoic acid substituted by a hydroxy group at position 7. All 4 double bonds have E- (trans-) geometry. It is a long-chain fatty acid, a straight-chain fatty acid, an alpha,beta-unsaturated monocarboxylic acid and a hydroxy polyunsaturated fatty acid."}]