Complex sentence: After primary education in Ballycastle, he moved with his family to Scotland where his father was serving with the Royal Navy at Faslane, initially attending St Stephen's Primary School, Dalmuir before continuing to secondary school at St Patrick's High School, Dumbarton.
Split into simpler sentences: After primary education in Ballycastle, his family moved to Scotland where his father was serving with the Royal Navy at Faslane. O'Brien initially attended St Stephen's Primary School, Dalmuir before continuing to secondary school at St Patrick's High School, Dumbarton.