Assertion: tibetan mastiff | /r/HasProperty | headstrong
Facets:
Source sentences:
text: The Tibetan Mastiff is headstrong and usually doesn’t perform well in agility or obedience.
text: The Tibetan Mastiff is incredibly territorial, strong willed, and independent.
text: It should be stressed that the Tibetan Mastiff is a strong willed breed, and proper socialization with people and other animals, and training, is necessary for dog and owner to enjoy their life together to the fullest.