20909
Cajaninstilbene acid ( CSA ) , an active compound separated from pigeon pea leaves , possesses the highly efficient antioxidant activities .
 Chemical: Cajaninstilbene acid; Chemical: CSA
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: Cajaninstilbene acid; Chemical: CSA