Assertion: citrus fruit's vitamin c | /r/CapableOf | play important role
Facets:
value: in immune function
type: OTHER
value: in oral health
type: LOCATION
Source sentences:
text: Similar to skin health, vitamin C also helps maintain healthy gums and plays an important role in oral health.
text: In addition to its biosynthetic and antioxidant functions, vitamin C plays an important role in immune function  and improves the absorption of nonheme iron , the form of iron present in plant-based foods.