Assertion: bilberry's vitamin c | /r/HasProperty | powerful antioxidant
Facets:
value: on own
type: MANNER
Source sentences:
text: It increases the processing of Vitamin C, a powerful antioxidant.
text: Another surprising thing is that Bilberry also contains Vitamin C, which on its own is a powerful immune booster.
text: Well, it turns out vitamin C is a powerful antioxidant which helps take care of eye blood vessels, folks.