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The known compounds were identified as 3 beta - hydroxytaraxer - 14 - en - 28 - oic acid or aleuritolic acid ( 5 ) ( McPhail , A . T . , McPhail , D . R . , Wani , M . C . , Wall , M . E . & A . W . , Nicholas , A . W . ( 1989 ) . Identity of maprounic acid with aleuritolic acid . Revision of the structure of maprounic acid : X - ray crystal structure of p - bromobenzyl acetylmaprounate . Journal Natural Products , 52 , 212 ) , 3 alpha - hydroxytaraxer - 14 - en - 28 - oic acid or isoaleuritolic acid ( 6 ) , 3 alpha - acetyltaraxer - 14 - en - 28 - oic acid acetate or aleuritolic acid acetate ( 7 ) ( Chaudhuri , S . K . , Fullas , F . , Brown , D . M . , Wani , M . C . , Wall , M . E . , Cai , L . , ... Kinghorn , A . D . ( 1995 ) . Isolation and structural elucidation of pentacyclic triterpenoids from Maprounea africana . Journal of Natural Products , 58 , 1 - 9 ) , 3 - oxo - taraxer - 14 - ene or taraxerone ( 8 ) beta - sitosterol ( 9 ) and stigmasterol ( 10 ) ( Kamboj & Saluja , 2011 ) , together with fatty acids .
 Chemical: 3 beta - hydroxytaraxer - 14 - en - 28 - oic acid; Chemical: aleuritolic acid; Chemical: maprounic acid; Chemical: aleuritolic acid; Chemical: maprounic acid; Chemical: p - bromobenzyl acetylmaprounate; Chemical: 3 alpha - hydroxytaraxer - 14 - en - 28 - oic acid; Chemical: isoaleuritolic acid; Chemical: 3 alpha - acetyltaraxer - 14 - en - 28 - oic acid acetate; Chemical: aleuritolic acid acetate; Chemical: 3 - oxo - taraxer - 14 - ene; Chemical: taraxerone; Chemical: beta - sitosterol; Chemical: stigmasterol
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: 3 beta - hydroxytaraxer - 14 - en - 28 - oic acid; Chemical: aleuritolic acid; Chemical: maprounic acid; Chemical: aleuritolic acid; Chemical: maprounic acid; Chemical: p - bromobenzyl acetylmaprounate; Chemical: 3 alpha - hydroxytaraxer - 14 - en - 28 - oic acid; Chemical: isoaleuritolic acid; Chemical: 3 alpha - acetyltaraxer - 14 - en - 28 - oic acid acetate; Chemical: aleuritolic acid acetate; Chemical: 3 - oxo - taraxer - 14 - ene; Chemical: taraxerone; Chemical: beta - sitosterol; Chemical: stigmasterol