[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a fatty acid ethyl ester of 2-hexenoic acid. It has a role as a metabolite. It is functionally related to a 2-hexenoic acid."}, {"from": "gpt", "value": "[C][C][C][/C][=C][/C][=Branch1][C][=O][O][C][C]"}]