19186
Gallic acid , a water - soluble ingredient in Pu - erh tea , stimulated Akt phosphorylation , but not AMPK phosphorylation .
 Chemical: Gallic acid
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: Gallic acid