Ключевые слова: abstract, activity, background, backside, blur, blurred, boy, chair, children, competition, contest, cooperate, crowd, crowded, exhibition, female, girl, group, hall, happiness, human, indoor, join, joy, kids, male, management, meeting, parents, participants, participation, party, people, photograph, recreation, row, seat, stadium, style, teenage, unrecognizable, vintage, waiting,