ClC1=C(Cl)C=C(Cl)C(C2=C(C3=CC(Cl)=C(Cl)C=C3Cl)C(C4=CC(Cl)=C(Cl)C=C4Cl)=C(C5=CC(Cl)=C(Cl)C=C5Cl)S2)=C1
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