8820
DNJ has been extracted from natural sources ( mulberry leaves ) for therapeutic purposes ; however , DNJ ingredients are in limited supply and are costly to obtain on a large scale .
 Chemical: DNJ; Chemical: DNJ
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: DNJ; Chemical: DNJ