19046
Polybrominated Dibenzo - p - dioxins ( PBDDs ) , Dibenzofurans ( PBDFs ) and Biphenyls ( PBBs ) - Inclusion in the Toxicity Equivalency Factor Concept for Dioxin - like Compounds -
 Chemical: Polybrominated Dibenzo - p - dioxins; Chemical: PBDDs; Chemical: Dibenzofurans; Chemical: PBDFs; 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: Biphenyls; Chemical: PBBs; Chemical: Dioxin