Complex sentence: In 1983 Bishop Carlos Filipe Ximenes Belo S.D.B. took over the administration of Dili Diocese, then the only diocese in the island, the 700,000 Catholics were divided into 30 parishes administered by 71 priests.
Split into simpler sentences: In 1983 Bishop Carlos Filipe Ximenes Belo S.D.B. took over the administration of Dili Diocese. Then the only diocese in the island, the 700,000 Catholics were divided into 30 parishes administered by 71 priests.