Assertion: breed's appearance | /r/CapableOf | evolve for mastiff
Facets:
Source sentences:
text: Yet, because the Bully breed is still being defined and clarified year after year, the appearance and temperament of its specimens will keep on evolving for some time and more Pitbull, Amstaff, Mastiff or Bulldog blood will be brought into the breed to fix the traits desired within the community.