Complex sentence: Boghossian won second prize at the Jubilee Anniversary Celebration of Haile Selassie I in 1954; the next year he was granted a scholarship which allowed him to study in Europe.
Split into simpler sentences: Boghossian won second prize at the Jubilee Anniversary Celebration of Haile Selassie I in 1954. The next year he was granted a scholarship which allowed him to study in Europe.