15050
Here , the solution phase stability of a series of silver : glutathione ( Ag : SG ) clusters was studied as a function of size , pH and chemical environment .
 Chemical: silver; Chemical: glutathione; Chemical: Ag
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: silver; Chemical: glutathione; Chemical: Ag