Ключевые слова: 1618, 1718, 18 years old, 1819, adolescence, adult, asleep, boy, caucasian, day, daylight, grass, hot, lay, laying, male, man, nature, park, parkland, peace, quiet, recreation, seasonal, sleep, sleeping, summer, summertime, sun, sunbathe, sunbathing, teen, teenage, teenager, warm weather, weather, years old, young, youth,