12972
Both arsenite and benzo ( a ) pyrene ( BaP ) are known human carcinogens .
 Chemical: arsenite; Chemical: benzo ( a ) pyrene; Chemical: BaP
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: arsenite; Chemical: benzo ( a ) pyrene; Chemical: BaP