Complex sentence: In 1910, the population was 5194, of whom 90.5% spoke Hungarian; and the following religions were represented: 57.5% Calvinist, 20.7% Jewish and 10% Roman Catholic.
Split into simpler sentences: In 1910, the town's population was 5194, of whom 90.5% spoke Hungarian. At that time, 57.5% were Calvinist, 20.7% Jewish, and 10% Roman Catholic.