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The mechanism of the recently discovered , unusual tetrabutylammonium fluoride ( TBAF ) deacylation of cellulose esters has been investigated by methods including kinetic isotope effect ( KIE ) studies .
 Chemical: tetrabutylammonium fluoride; Chemical: TBAF
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: tetrabutylammonium fluoride; Chemical: TBAF