[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C][=Branch1][C][=O][C@@H1][C@@H1][Branch1][Ring2][O][Ring1][Ring1][C][=Branch1][C][=O][C][Ring1][=Branch2][=O]"}, {"from": "gpt", "value": "The molecule is an oxacycle."}]