7761
The longer the alkyl group attached to the gallate compound , the more cytoprotective the polyphenol was .
 Chemical: alkyl; Chemical: gallate; Chemical: polyphenol
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: alkyl, gallate, polyphenol 
Answer:
 Chemical: alkyl; Chemical: gallate; Chemical: polyphenol