Ключевые слова: ageing, backview, blurred, boys, busy, challenge, colourful, community, condition, crowd, crowded, diverse, earth, economy, education, employment, equality, friendship, future, girls, global, group, health, illustration, interaction, life, many, meeting, men, migration, mixed, motion, movement, people, politic, population, resource, shadow, social, speed, sunlight, teenager, traffic, unity, urban, walking, women, young adult, youth,