6603
In first place , the antibacterial effect of the combination of flavonols 2 and 3 was assessed , as these showed individual effectiveness lower than or equal to that of the fraction from which they were obtained .
 Chemical: flavonols
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: flavonols