3231
Various extracts from peppermint contain menthol as a major active constituent and have been used for centuries as traditional medicines for a number of ailments including infections , insomnia , and irritable bowel syndrome as well as an insect repellent .
 Chemical: menthol
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: menthol 
Answer:
 Chemical: menthol