dog, toy, animal, backyard, turf, running, funny, background, summer, nature, grass, happy, garden, green, park, game, training, fun, learning, pet, puppy, ball, canine, terrier, lawn, active, outdoors, jack russell, physical activity, dog walking, practice, yard, back yard, bring, carry, cheerful, doggy, enjoying, excited, fetch, holding, looking at camera, object, playful, playing, pleased, retrieve, trained, walk