10544
When their biological activities were evaluated , all HCA - Phe - NHOH and HCA - Pro - NHOH exhibited enhanced antioxidant activity compared to HCA alone .
 Chemical: HCA - Phe - NHOH; Chemical: HCA - Pro - NHOH; Chemical: HCA
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: HCA - Phe - NHOH; Chemical: HCA - Pro - NHOH; Chemical: HCA