[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@][C][C][C@H1][C@H1][Branch1][=C][C@@H1][Ring1][=Branch1][C][C][C@][Ring1][=Branch2][Branch1][Ring1][C][#C][O][C][C][C][=C][C@H1][Branch1][Branch2][C][C][C@H1][Ring1][P][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a 17beta-hydroxy steroid, a 3beta-hydroxy steroid and a terminal acetylenic compound. It has a role as a progestin."}]