17857
Citrus narirutin fraction ( CNF ) , contained 75 % of narirutin , was obtained by an ultra - sonicated extraction and further purification .
 Chemical: narirutin; Chemical: narirutin
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: narirutin; Chemical: narirutin