10343
The rapid development of drug resistance as a result of exposure to small molecule tyrosine kinase inhibitors ( TKIs ) is an important drawback to the successful use of these agents in the clinic .
 Chemical: tyrosine
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: tyrosine