Complex sentence: Factors leading to the establishment of Anti-cession of Sarawak movement is due to the violation of 1941 constitution of Sarawak that Sarawak will be promised of self-ruling rights by Charles Vyner Brooke when Charles Vyner Brooke decided to handover Sarawak to British on 8 February 1946.
Split into simpler sentences: Factors leading to the establishment of Anti-cession of Sarawak movement is due to the violation of 1941 constitution of Sarawak that Sarawak will be granted of self-ruling rights by Charles Vyner Brooke. When Charles Vyner Brooke decided to cede Sarawak to British on 8 February 1946.