[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a cyclic ketone. It derives from a hydride of a cyclopenta[l]phenanthrene."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][=C][=C][Branch1][Branch1][C][Ring1][P][=O][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]