16221
Importantly , we identified tauro - conjugated beta - and alpha - muricholic acids as FXR antagonists .
 Chemical: tauro - conjugated beta - and alpha - muricholic acids
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: tauro - conjugated beta - and alpha - muricholic acids