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In this study , three flavonoids lupinifolin ( 6 ) , 8 - methoxy - 7 , 3 ' , 4 ' - trihydroxyflavone ( 7 ) , and 7 , 8 , 3 ' , 4 ' - tetrahydroxyflavone ( 8 ) , a triterpenoid lupeol ( 3 ) as well as four sterols beta - sitosterone ( 1 ) , stigmasta - 5 , 22 - dien - 3 - one ( 2 ) , beta - sitosterol ( 4 ) , and stigmasterol ( 5 ) were isolated from A . myriophylla wood .
 lupinifolin, 8 - methoxy - 7 , 3 ' , 4 ' - trihydroxyflavone, 7 , 8 , 3 ' , 4 ' - tetrahydroxyflavone, triterpenoid, lupeol, sterols, beta - sitosterone, stigmasta - 5 , 22 - dien - 3 - one, beta - sitosterol, stigmasterol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 lupinifolin, 8 - methoxy - 7 , 3 ' , 4 ' - trihydroxyflavone, 7 , 8 , 3 ' , 4 ' - tetrahydroxyflavone, triterpenoid, lupeol, sterols, beta - sitosterone, stigmasta - 5 , 22 - dien - 3 - one, beta - sitosterol, stigmasterol