22537
The values of sigma e and q increased with APAP concentration , indicating that the chain folding of PEO was hindered by APAP .
 Chemical: APAP; Chemical: PEO; Chemical: APAP
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: APAP; Chemical: PEO; Chemical: APAP