10994
The dietary concentration of Sigma PCBs predicted to result in 20 % incidence of the jaw lesion ( EC20 ) was 2 . 3 micro g Sigma PCBs / g feed ( 15 pg TEQWHO 2005 / g feed ) , and the hepatic concentration was 2 . 8 micro g Sigma PCBs / g liver ( 89 pg TEQWHO 2005 / g liver ) .
 Chemical: PCBs; Chemical: PCBs; Chemical: PCBs
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: PCBs; Chemical: PCBs; Chemical: PCBs