On a summer evening, people sit by a fountain illuminated with different colorsOn a summer evening, people sit by a fountain illuminated with different colors
People of different professions are sitting on a beam at the height of a skyscraperPeople of different professions are sitting on a beam at the height of a skyscraper
Несходство, различие в чём-н.. Величина, сумма, являющаяся разностью между двумя другими.