4429
These results suggest that maple polyphenols may have potential cancer chemopreventive effects mediated through cell cycle arrest .
 Chemical: polyphenols
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: polyphenols 
Answer:
 Chemical: polyphenols