9299
We investigated the effects of caffeine on the activity of EAAT3 and the involvement of protein kinase C ( PKC ) and phosphatidylinositol 3 - kinase ( PI3K ) .
 Chemical: caffeine
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: caffeine