Assertion: hippo | /r/HasProperty | the closest thing
Facets:
value: to modern day whales
type: OTHER
value: to amphibians in the mammal kingdom
type: OTHER
Source sentences:
text: If you ignore the difference in size, hippopotamuses may be the closest thing to amphibians in the mammal kingdom.
text: The hippopotamus is a mammal that lives in Africa and is the closest living relative to modern day whales.