Ключевые слова: artificial turf, background, backstop, baseline, carpet, classroom, clay, club, coat, copy space, coral, corner, doubles, end line, equipment, garden stadium, glass, green, hard, image, indoor, lawn, lesson, line, material, membership, net, no people, omni, play, school, sideline, single, softball, tennis, tennis club, tennis court, the ssk, turf, unattended, when, when on the net,