[{"from": "human", "value": "Describe this molecule. [C][C][C@H1][Branch1][Branch1][C][=C][Ring1][Branch1][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an optically active form of hydnocarpic acid having (R)-configuration."}]