1513
Chemoprevention of benzo ( a ) pyrene - induced colon polyps in ApcMin mice by resveratrol .
 Chemical: benzo ( a ) pyrene; Chemical: resveratrol
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: benzo ( a ) pyrene, resveratrol 
Answer:
 Chemical: benzo ( a ) pyrene; Chemical: resveratrol