21159
The PEG - grafted cellulose nanofibrils exhibited nanodispersibility in organic solvents such as chloroform , toluene , and tetrahydrofuran .
 Chemical: PEG; Chemical: chloroform; Chemical: toluene; Chemical: tetrahydrofuran
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: PEG; Chemical: chloroform; Chemical: toluene; Chemical: tetrahydrofuran