21716
In this study , we determined that metabolism of BaP by human skin HaCaT keratinocytes resulted in six identified phase I metabolites , for example , BaP trans - 7 , 8 - dihydrodiol ( BaP t - 7 , 8 - diol ) , BaP t - 4 , 5 - diol , BaP t - 9 , 10 - diol , 3 - hydroxybenzo [ a ] pyrene ( 3 - OH - BaP ) , BaP ( 7 , 10 / 8 , 9 ) tetrol , and BaP ( 7 / 8 , 9 , 10 ) tetrol .
 Chemical: BaP; Chemical: BaP trans - 7 , 8 - dihydrodiol; Chemical: BaP t - 7 , 8 - diol; Chemical: BaP t - 4 , 5 - diol; Chemical: BaP t - 9 , 10 - diol; Chemical: 3 - hydroxybenzo [ a ] pyrene; Chemical: 3 - OH - BaP; Chemical: BaP ( 7 , 10 / 8 , 9 ) tetrol; Chemical: BaP ( 7 / 8 , 9 , 10 ) tetrol
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: BaP; Chemical: BaP trans - 7 , 8 - dihydrodiol; Chemical: BaP t - 7 , 8 - diol; Chemical: BaP t - 4 , 5 - diol; Chemical: BaP t - 9 , 10 - diol; Chemical: 3 - hydroxybenzo [ a ] pyrene; Chemical: 3 - OH - BaP; Chemical: BaP ( 7 , 10 / 8 , 9 ) tetrol; Chemical: BaP ( 7 / 8 , 9 , 10 ) tetrol