[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][/C][=C][/C][/C][=C][/C][=C][/C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is any octadecatrienoate having double bonds at positions 9, 11 and 14. It is a conjugate base of a 9,11,14-octadecatrienoic acid."}]