Assertion: vitamin d | /r/AtLocation | milk
Facets:
value: often
type: TEMPORAL
value: in the late 1930s
type: TEMPORAL
value: in the u.s.
type: LOCATION
Source sentences:
text: Why is vitamin D added to milk?
text: Vitamin D was first added to milk in the U.S. in the late 1930s.
text: It is often added to milk.