Complex sentence: The Commonwealth Employment Service (CES) was an Australian Government employment agency established in 1946 with the introduction of the "Re-establishment and Employment Act 1945" and continued to exist under the provisions of the "Commonwealth Employment Service Act 1978".
Split into simpler sentences: The Commonwealth Employment Service (CES) was an Australian Government employment agency that was established in 1946 with the introduction of the "Re-establishment and Employment Act 1945". It continued to exist under the provisions of the "Commonwealth Employment Service Act 1978".