Assertion: onion's quercetin | /r/CapableOf | act as antioxidant
Facets:
Source sentences:
text: Onions contain quercetin, which is a flavonoid that acts as an antioxidant.
text: Quercetin acts as an antioxidant and an anti-inflammatory, helping limit your risk for cancer and heart disease.
text: It has abundant flavonoids especially quercetin which acts as antioxidant and anti-inflammatory.