3915
Toosendanin ( TSN ) , a triterpenoid isolated from Melia toosendan Sieb .
 Chemical: Toosendanin; Chemical: TSN; Chemical: triterpenoid
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: Toosendanin; Chemical: TSN; Chemical: triterpenoid