[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@][C][=C][C][=C][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][C][C@H1][Ring1][O][C@@H1][Ring1][#C][C][C][C@@H1][Ring2][Ring1][C][O][C][=Branch1][C][=O][O][C][C][C][C][C][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a steroid ester."}]