Assertion: tibetan mastiff's owner | /r/HasProperty | willing
Facets:
Source sentences:
text: Owners must understand canine psychology and be willing and able to assume the primary leadership position.
text: Owners must understand canine psychology and be willing and able to assume the primary leadership position.
text: Owners must understand canine psychology and be willing and able to assume the primary leadership position.
text: Owners must understand canine psychology and be willing and able to assume the primary leadership position.