Ключевые слова: actions, activity, adolescence, beautiful, bicycle, bmx, child, communications, concepts, contemplation, copy, culture, cycle, cycling, depression, emotional, emotions, ethnicity, extreme, females, grief, ideas, lifestyles, loneliness, males, man, one, only, pain, park, people, person, portrait, sadness, scene, solitude, space, sports, stress, student, stunt, summer, teenage, teenagers, teens, thinking, up, urban, young, youth,