17479
Ethanol was more efficient for polyphenol extraction than water .
 Chemical: Ethanol; 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: Ethanol, polyphenol 
Answer:
 Chemical: Ethanol; Chemical: polyphenol