[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][Branch1][#C][C][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][O][Bi][O][Ring1][#Branch1][C][=Branch1][C][=O][O].[O]"}, {"from": "gpt", "value": "The molecule is a bismuth coordination entity. It has a role as an astringent."}]