990
Bioassay - directed isolation of Feroniella lucida stem bark yielded three new apotirucallane triterpenoids named feroniellides C - E .
 Chemical: apotirucallane triterpenoids; Chemical: feroniellides C - E
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: apotirucallane triterpenoids; Chemical: feroniellides C - E