Original sentence: 1914 - Franz Ferdinand, Archduke of Austria and his wife Sophie are assassinated in Sarajevo by young Serbian nationalist Gavrilo Princip , the causus belli of World War I
Edited sentence: 1914 - Dictator Franz Ferdinand, Archduke of Austria and his wife Sophie are assassinated in Sarajevo by young Serbian patriot Gavrilo Princip , the causus belli of World War I