Assertion: desert | /r/HasProperty | flat
Facets:
value: with a few small hills
type: OTHER
value: mostly
type: DEGREE
Source sentences:
text: It is mostly flat, with a few small hills.
text: Usually deserts have a lot of wind because they are flat and have no vegetation to block out the wind.
text: Deserts can be mountainous or flat, and only about 20 percent of deserts are covered with sand.