Complex sentence: Following the April 12 Incident, the coup marked an open split between the Wuhan National Government and CCP: the trade unions, peasant associations and other revolutionary organizations were banned, and a massacre of the Communists and other revolutionaries was carried out.
Split into simpler sentences: Following the April 12 Incident, the coup marked an open split between the Wuhan National Government and the Chinese Communist Party. Trade unions, peasant associations, and other revolutionary organizations were banned, and a massacre of the Communists and other revolutionaries was carried out.