14888
Discovery of a potential anti - inflammatory agent : 3 - oxo - 29 - noroleana - 1 , 9 ( 11 ) , 12 - trien - 2 , 20 - dicarbonitrile .
 3 - oxo - 29 - noroleana - 1 , 9 ( 11 ) , 12 - trien - 2 , 20 - dicarbonitrile
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 3 - oxo - 29 - noroleana - 1 , 9 ( 11 ) , 12 - trien - 2 , 20 - dicarbonitrile