Ключевые слова: abstract, activity, american, athletic, background, ball, banner, base, baseball, blackboard, blank, board, candid, catch, chalk, chalkboard, close, culture, design, equipment, exercise, fast, fastball, frame, fun, game, hardball, icon, isolated, label, leather, leisure, macro, national, object, painting, pattern, play, recreation, remote, single, softball, sphere, sport, symbol, tag, team, texture, throw, white,