[{"from": "human", "value": "Describe this molecule. [C][=C][C][Branch1][S][C][Branch1][Branch1][C][=C][Ring1][=Branch1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is a cyclohexadienecarboxylate. It is a conjugate base of a 1,6-dihydroxycyclohexa-2,4-dienecarboxylic acid."}]