[{"from": "human", "value": "Generate a molecule based on this description. The molecule is any oxo steroid carrying the oxo group at position 17. It is an oxo steroid and a cyclic ketone."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][Ring1][=Branch1][C][C][C][Ring1][#Branch2][C][Ring1][=C][C][C][C][Ring1][P][=O]"}]