Assertion: gruel | /r/HasProperty | staple foods
Facets:
value: around the world
type: LOCATION
value: for millennia
type: TEMPORAL
Source sentences:
text: While porridge, gruel (a thin porridge-like mixture with boiled milk or water) and grain have been staple foods around the world for millennia, they’ve also often served as stark symbols of the differences and relationship between ‘haves’ and ‘have-nots.'