25977
Cyp2b10 , a gene regulated by the constitutive androstane receptor and a transcript normally up - regulated by in vivo exposure to PFAAs , was also unchanged in cultured mouse hepatocytes .
 Chemical: androstane; Chemical: PFAAs
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: androstane, PFAAs 
Answer:
 Chemical: androstane; Chemical: PFAAs