Assertion: cumulonimbus cloud's base | /r/HasProperty | below 550 metres
Facets:
value: in temperate areas
type: LOCATION
value: usually
type: TEMPORAL
value: above ground level
type: LOCATION
Source sentences:
text: In temperate areas, the base of the cumulus clouds is usually below 550 metres (1,800 ft) above ground level, but it can range up to 2,400 metres (7,900 ft) in altitude.