Assertion: sunflower | /r/ObjectUse | used for food
Facets:
value: for over 3,000 years
type: TEMPORAL
value: by american indians
type: OTHER
Source sentences:
text: Sunflowers were originally cultivated by Native Americans, and used for food and medicine.
text: The Sunflower has been used as food by American Indians for over 3,000 years.
text: Back then, they were developed and used for oil, dye, medicine, and food.