[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a saturated organic heteromonocyclic parent that is cyclopentadecane in which the carbon atoms at positions 1, 4, 7, 10 and 13 have been replaced by oxygen atoms to give a crown ether. It is a crown ether and a saturated organic heteromonocyclic parent."}, {"from": "gpt", "value": "[C][C][O][C][C][O][C][C][O][C][C][O][C][C][O][Ring1][#C]"}]