Assertion: sea vegetable | /r/HasProperty | good source of vitamin a
Facets:
value: very
type: DEGREE
value: in the form of carotenoids
type: OTHER
Source sentences:
text: They are also a very good source of vitamin A (in the form of carotenoids) and copper as well as a good source of protein, pantothenic acid, potassium, iron, zinc, vitamin B6, niacin, phosphorus, and vitamin B1.