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These polymeric tea polyphenol spheres are GSH responsive , acid resistant but alkali - responsive , ideally used as platform for controlled delivery of functional guests .
 Chemical: polyphenol; Chemical: GSH
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: polyphenol; Chemical: GSH