Assertion: avocado's vitamin c | /r/HasProperty | an antioxidant necessary
Facets:
Source sentences:
text: Vitamin C. Strawberries are an excellent source of vitamin C, an antioxidant necessary for immune and skin health ( 7 , 8 ).
text: Strawberries are an excellent source of vitamin C, an antioxidant necessary for immune and skin health ( , ).