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Whereas EAN is a protic IL that forms a nanostructured sponge phase in the bulk , EMIm TFSI is aprotic and has weak ( or absent ) bulk association structure .
 Chemical: EAN; Chemical: EMIm TFSI
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: EAN; Chemical: EMIm TFSI