331
Here , we report that miR - 143 inhibits HK2 expression via a conserved miR - 143 recognition motif located in the 3 ' - untranslated region ( 3 ' UTR ) of HK2 mRNA .
 None
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:  
Answer:
 None