Assertion: black swan | /r/HasProperty | discovered in the wild
Facets:
Source sentences:
text: The term is based on an ancient saying that presumed black swans did not exist – a saying that became reinterpreted to teach a different lesson after black swans were discovered in the wild.
text: The term is based on an ancient saying which presumed black swans did not exist, but the saying was rewritten after black swans were discovered in the wild.