Assertion: penguin | /r/HasProperty | discovered
Facets:
Source sentences:
text: When penguins were first discovered, they were mistakenly thought to be auks.
text: It is not closely related to the birds now known as penguins, which were discovered later and so named by sailors because of their physical resemblance to the great auk.
text: When penguins were first discovered, they were mistakenly thought to be auks.
text: (When the first penguins were discovered AFTER the Great Auk was extinct, all penguins were named in their honor, being large flightless birds that were black with white trimmings).