Ключевые слова: adult, american, animal, artificial, breed, canine, caucasian, command, companion, dog, education, extended, female, friend, grass, handler, indoors, inside, instructor, lady, legs, lying, mammal, master, new, obedience, obedient, owner, person, pet, professional, puppy, quiet, school, session, side, staffordshire, synthetic, teaching, terrier, trainer, training, woman,