9665
Increased polycaprolactone ( PCL ) binding at the enzyme surface was also observed , indicating greater PCL affinity for a more hydrated enzyme surface .
 Chemical: polycaprolactone; Chemical: PCL; Chemical: PCL
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: polycaprolactone; Chemical: PCL; Chemical: PCL