Ключевые слова: activity, area, arena, artificial, background, ball, competition, corner, detail, empty, exercise, field, football, game, goal, goalie, grass, green, ground, kick, lawn, line, lines, mark, marking, meadow, nature, nobody, outdoor, paint, pattern, penalty, perpendicular, pitch, plastic, play, sideline, soccer, space, sport, stadium, summer, surface, symbol, synthetic, team, texture, turf, white, yard,