Assertion: hippo | /r/CapableOf | spend up to 18 hours
Facets:
value: to keep cool
type: PURPOSE
value: in the water
type: LOCATION
value: a day
type: TEMPORAL
Source sentences:
text: The Hippopotamus spends up to 18 hours a day in the water to keep cool but when darkness falls, they venture out onto land and follow well-trodden paths to their feeding grounds, before returning to the water in the morning.