[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][C][C][C][Branch1][Ring2][C][Ring1][=Branch1][Branch1][N][C][C][Ring1][=Branch2][C][=Branch1][C][=O][O][Ring1][=Branch2][O]"}, {"from": "gpt", "value": "The molecule is an epsilon-lactone. It is functionally related to a 4-oxahomoadamantan-5-one."}]