Complex sentence: Revolutionary Workers'Groups were left wing groups in Ireland officially founded in 1930 with the objective of creating a Revolutionary Workers' Party, and in 1933 they disbanded and established the Communist Party of Ireland.
Split into simpler sentences: Revolutionary Workers'Groups (RWG) were left wing groups in Ireland officially founded in 1930 with the objective of creating a Revolutionary Workers' Party. In 1933 they disbanded and established the Communist Party of Ireland.