Complex sentence: He sat in the House of Representatives under the leadership of Jack Beasley until 1936, when the two factions reunited; in the second split of 1940, Rosevear was deputy-leader of the Australian Labor Party (Non-Communist).
Split into simpler sentences: He sat in the House of Representatives under the leadership of Jack Beasley until 1936, when the two factions reunited. Following the second split of 1940, Rosevear was deputy-leader of the Australian Labor Party (Non-Communist).