11495
These xenobiotic / endobiotic - sensing nuclear receptors regulate phase I oxidation , phase II conjugation , and phase III transport in bile acid and drug metabolism in the digestive system .
 Chemical: bile acid
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: bile acid