Ключевые слова: african american, athletic, black man, caucasian, cheerful, daylight, daytime, emotion, emotional, fitness, fitness mats, flora, four people, green, grey hair, group, happiness, happy, holding, men, multicultural, multiethnic, natural, nature, outdoors, park, pensioners, positive, retired, senior, smile, smiling, sport, sportive, sportsmen, sportswear, sportswomen, sporty, summer, summertime, sunlight, sunshine, together, togetherness, trees, walk, walking, women,