Assertion: onion's quercetin | /r/HasProperty | antioxidant
Facets:
Source sentences:
text: The quercetin in onions is an antioxidant that improves the cardiovascular function of the heart and increases endurance and stamina.
text: Onions also contain quercetin, another antioxidant that fights inflammation.
text: Green onions contain Quercetin which is an antioxidant that is useful for anti-inflammatory and anti-histamine.