22804
Six new sesquiterpenoids , aristoyunnolins A - F ( 1 - 6 ) , an artifact of isolation [ 7 - O - ethyl madolin W ( 7 ) ] , and 12 known analogues were isolated from stems of Aristolochia yunnanensis .
 Chemical: sesquiterpenoids; Chemical: aristoyunnolins A - F; Chemical: 7 - O - ethyl madolin W
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: sesquiterpenoids; Chemical: aristoyunnolins A - F; Chemical: 7 - O - ethyl madolin W