Ключевые слова: activity, arena, athletic, background, ball, barrier, border, boundary, cage, competition, court, exercise, fence, field, football, frame, game, gate, goal, grass, green, grid, ground, guard, iron, kick, line, match, mesh, metal, metallic, net, netting, outdoor, pattern, place, play, protect, row, safety, security, soccer, space, sport, stadium, steel, team, texture, wall, wire,