[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][Branch1][#Branch2][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a tricarboxylic acid. It is a conjugate acid of a homoisocitrate(1-)."}]