Input (grade 13): When Cassius returned to Rome two years later, the outbreak of the civil war between Julius Caesar and Gnaeus Pompeius Magnus saved Cassius from being brought to trial for extortion in Syria.
Output (grade 9): Cassius returned to Rome two years later. The outbreak of the civil war between Julius Caesar and Pompey the Great saved Cassius from being brought to trial by his enemies for extortion in Syria.