Assertion: desert | /r/DefinedAs | area
Facets:
value: often
type: TEMPORAL
value: technically
type: MANNER
Source sentences:
text: A desert is technically defined as an area which has on average less than 250mm of rain per year.
text: Deserts are often defined as areas that receive less than 10 inches of average annual rainfall, but a more accurate defining factor is aridity.