1513
Chemoprevention of benzo ( a ) pyrene - induced colon polyps in ApcMin mice by resveratrol .
 benzo ( a ) pyrene, resveratrol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 benzo ( a ) pyrene, resveratrol