Input (grade 13): Widespread violence in Bangui followed the March 1981 elections, which took place following a French operation to depose Jean-Bedel Bokassa in 1979 and replace him with David Dacko.
Output (grade 6): Much violence in Bangui came after the March 1981 elections. These elections took place after the French removed Jean-Bedel Bokassa from office and replaced him with David Dacko.