4241
A positive correlation was observed between total phenolic and flavonoid levels of the extracts and antioxidant activity in some of the assays .
 Chemical: phenolic; Chemical: flavonoid
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: phenolic; Chemical: flavonoid