[{"from": "human", "value": "Provide a description of this molecule. [C][C@@][C][C][C][C@H1][Ring1][Branch1][C@@H1][C][C][C@@H1][C][C][C][C][C@@H1][Ring1][=Branch1][C@H1][Ring1][#Branch2][C][C][Ring1][P]"}, {"from": "gpt", "value": "The molecule is an estrane."}]