Assertion: mule | /r/HasProperty | a horse-donkey hybrid
Facets:
Source sentences:
text: A mule is a horse-donkey hybrid (a mix of two different animals).
text: Mules (donkey/horse hybrids) are sterile.
text: A mule (horse and donkey hybrid)
text: A mule is a horse-donkey hybrid (a mix of two different animals).