Assertion: mule's donkey | /r/HasProperty | useful
Facets:
value: very
type: DEGREE
value: to humans
type: TRANSITIVE-OBJECT
Source sentences:
text: Due to donkeys and mules being very useful to humans, it’s important to know how to tell them apart later on in this article.
text: Donkeys are known for being stubborn, but are very useful because they can carry heavy loads over rough terrain.