Complex sentence: In 1981, Cleveland was added as stopover on route Belgrade-Chicago.Same year Jat fleet counted 28 planes 2 DC-10,13 DC-9,4 Boeing 707 and 9 Boeing 727.
Split into simpler sentences: In 1981, Cleveland was added as stopover on route Belgrade-Chicago. The same year the Jat fleet counted 28 planes 2 DC-10,13 DC-9,4 Boeing 707 and 9 Boeing 727.