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Microbial transformation of ursolic acid ( UA , 3 beta - hydroxy - urs - 12 - en - 28 - oic acid , 1 ) by filamentous fungus Syncephalastrum racemosum CGMCC 3 . 2500 was conducted .
 ursolic acid, 3 beta - hydroxy - urs - 12 - en - 28 - oic acid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ursolic acid, 3 beta - hydroxy - urs - 12 - en - 28 - oic acid