28459
Few targets like epidermal growth factor receptor ( EGFR ) mutations and anaplastic lymphoma kinase ( ALK ) gene rearrangements have successfully been targeted with EGFR tyrosine kinase inhibitors ( TKIs ) and crizotinib , respectively .
 Chemical: crizotinib
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: crizotinib 
Answer:
 Chemical: crizotinib