7106
In summary , we have shown that the nitrile - based peptidomimetic inhibitors are effective against 3CL ( pro ) , and they inhibit 3CL ( pro ) from a broad range of coronaviruses .
 Chemical: nitrile
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: nitrile