Complex sentence: John Simon studied to be an economist at the University of Cape Town and left South Africa in 1965 as a result of apartheidand came to London where he studied composition part-time at Trinity College of Music and the Royal College of Music.
Split into simpler sentences: John Simon studied to be an economist at the University of Cape Town and left South Africa in 1965 as a result of apartheid. He went to London where he studied composition part-time at Trinity College of Music and the Royal College of Music.