[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an oxacycle."}, {"from": "gpt", "value": "[C][C@@H1][C][C@@H1][Branch1][S][/C][=C][/C@H1][Branch1][#Branch2][/C][=C][\\C][=Branch1][C][=O][O][Ring1][O][O][O]"}]