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Their anticholinesterase activity was carried out by the Ellman assay against both enzymes , acetylcholinesterase ( AChE ) and butyrylcholinesterase , and diterpene sclareol exhibited fairly good activity against both the enzymes while the two triterpenoids oleanolic and ursolic acids exhibited selective activity against AChE .
 Chemical: sclareol; Chemical: oleanolic and ursolic acids
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: sclareol; Chemical: oleanolic and ursolic acids