19879
Two different composite scaffolds , solid - freeform - fabricated PCL / beta - TCP supplemented with and without collagen nanofibers are fabricated .
 Chemical: PCL; Chemical: beta - TCP
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: PCL; Chemical: beta - TCP