20104
Thermoplastic Polyurethanes From Undecylenic Acid - Based Soft Segments : Structural Features and Release Properties .
 Chemical: Polyurethanes; Chemical: Undecylenic Acid
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Polyurethanes, Undecylenic Acid 
Answer:
 Chemical: Polyurethanes; Chemical: Undecylenic Acid