Assertion: elm's bark | /r/HasProperty | important survival food
Facets:
value: in the europe
type: LOCATION
value: for both the native americans
type: TRANSITIVE-OBJECT
Source sentences:
text: The boiled bark was an important survival food for both the Native Americans and the colonists during times of famine.
text: Bark and seed of elm were important source of food in the Europe during the famine at the beginning of the 19th century.