Assertion: flax | /r/ObjectUse | used in food
Facets:
value: since 50008000 bce
type: TEMPORAL
Source sentences:
text: Flax (Linum uistatissimum L., Linaceae) and certain perennial species has been used in food in Europe and Asia since 50008000 bce, and the fiber of flax stem has been used for linen cloth, and many other uses.