[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][Branch1][=C][C][=Branch1][#Branch2][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][Cl][Cl][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a tetrachlorobiphenyl that is biphenyl in which one of the phenyl groups is substituted by chlorines at positions 2, 3, 5, and 6. It is a tetrachlorobiphenyl and a tetrachlorobenzene."}]