Ключевые слова: active, area, box, cage, close, closed, closing, court, courtyard, defense, door, doorway, entertainment, entrance, exit, fence, fenced, game, gate, grate, grid, ground, handle, iron, key, keys, material, mesh, metal, metallic, object, open, outdoors, playground, private, professional, protect, protection, safety, seasonal, security, security system, sport, stadium, steel, tennis, textured, welding, wire, yard,