[{"from": "human", "value": "Describe this molecule. [C][=C][C][=Branch2][Ring1][Branch1][=C][C][=C][Ring1][=Branch1][O][C][=C][Branch1][#Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Br][Br][Br]"}, {"from": "gpt", "value": "The molecule is a polybromodiphenyl ether that is diphenyl ether in which the hydrogens at the 2, 4, and 4' positions have been replaced by bromines."}]