19048
The expert panel concluded that polybrominated dibenzo - p - dioxins ( PBDDs ) , dibenzofurans ( PBDFs ) , and some dioxin - like biphenyls ( dl - PBBs ) may contribute significantly in daily human background exposure to the total dioxin toxic equivalencies ( TEQs ) .
 Chemical: polybrominated dibenzo - p - dioxins; Chemical: PBDDs; Chemical: dibenzofurans; Chemical: PBDFs; Chemical: dioxin; Chemical: biphenyls; Chemical: PBBs; Chemical: dioxin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: polybrominated dibenzo - p - dioxins; Chemical: PBDDs; Chemical: dibenzofurans; Chemical: PBDFs; Chemical: dioxin; Chemical: biphenyls; Chemical: PBBs; Chemical: dioxin