[{"from": "human", "value": "Describe this molecule. [C][=Branch1][O][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O][\\C][=C][\\O]"}, {"from": "gpt", "value": "The molecule is a 2-hydroxy-6-oxohexa-2,4-dienoic acid having (2E,4Z)-configuration. It is a conjugate acid of a (2E,4Z)-2-hydroxy-6-oxohexa-2,4-dienoate."}]