22730
Among the seven product categories , product pH ranged from 4 . 7 to 7 . 9 , and total nicotine concentration spanned from 3 . 9 to 40 . 1mg / g .
 Chemical: nicotine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: nicotine