Complex sentence: Jon Haylett is a novelist born in Dar-es-Salaam (in what was Tanganyika), he moved to Mombasa, Kenya in 1950 but was educated in England from the age of nine.
Split into simpler sentences: Jon Haylett is a novelist born in Dar-es-Salaam (in what was Tanganyika). He moved to Mombasa, Kenya in 1950 but was educated in England from the age of nine.