Assertion: tibetan mastiff's owner | /r/NotCapableOf | keep him
Facets:
Source sentences:
text: Start your search for a good breeder at the website of the Mastiff Club of America, and locate a breeder who has agreed to abide by its code of ethics, which prohibits the sale of puppies to or through pet stores and calls for the breeder to take back any dog during its life if the owner is unable to keep him.