Assertion: walnut | /r/ObjectUse | used in cooking
Facets:
Source sentences:
text: Walnuts are a common food source and are used in cooking and baking.3, 9 Walnut extract is an old-fashioned hair dye and also has been used to darken (stain) the skin.6, 9 Walnut shell flour has been used as a carrier for insecticides, filler for building materials, and stuffing in toys.9