Ключевые слова: activity, athleticism, backyard, camaraderie, carefree, cheerful, childhood, children, colorful, dynamic, early childhood, energetic, energy, exuberant, friendly, friends, friendship, fun, group, happiness, innocence, joyful, kids, laughter, leisure, lively, numbers, outdoor, play, playground, playground equipment, playtime, running, school, schoolyard, social, sprinting, team spirit, teamwork, together, united, unity, vibrant, youth,