13037
Mutation of residues within the PI ( 4 , 5 ) P ( 2 ) binding site of MA decreased the antiviral effect of compound 7 .
 Chemical: PI ( 4 , 5 ) P ( 2 )
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: PI ( 4 , 5 ) P ( 2 )