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We confirmed a dramatic reduction in muricholic acid , but not cholic acid , levels in CONV - R mice .
 Chemical: muricholic acid; Chemical: cholic 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: muricholic acid; Chemical: cholic acid