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Composition of microemulsion ( ME ) systems consisting of butyl lactate , Brij ( (R) ) 97 , Transcutol ( (R) ) and water was optimized using augmented simplex lattice mixture design .
 Chemical: butyl lactate; Chemical: Brij; Chemical: Transcutol
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: butyl lactate; Chemical: Brij; Chemical: Transcutol