24791
This well - defined model system exhibits a strikingly robust phenomenon : CNTs spontaneously partition between the PEG - and the dextran - rich phases according to nanotube ' s diameter and metallicity .
 Chemical: PEG
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