20401
Two new tri - nor - eudesmane - type sesquiterpenoids were isolated from the roots of Inula racemosa , and their structures were elucidated as 8 - oxo - tri - nor - eudesm - 6 - en - 5 alpha - ol ( 1 ) and tri - nor - eudesm - 5 - en - 7 beta , 8 beta - diol ( 2 ) .
 Chemical: tri - nor - eudesmane; Chemical: sesquiterpenoids; Chemical: 8 - oxo - tri - nor - eudesm - 6 - en - 5 alpha - ol; Chemical: tri - nor - eudesm - 5 - en - 7 beta , 8 beta - diol
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: tri - nor - eudesmane; Chemical: sesquiterpenoids; Chemical: 8 - oxo - tri - nor - eudesm - 6 - en - 5 alpha - ol; Chemical: tri - nor - eudesm - 5 - en - 7 beta , 8 beta - diol