Complex sentence: He represented the Auckland seat of Manukau from 1963 to 1969, then Mangere from 1969 to 1977, when he resigned following what was known as the'Moyle affair'.
Split into simpler sentences: He represented the Auckland seat of Manukau from 1963 to 1969, then Mangere from 1969 to 1977, when he resigned. Moyle resigned following what was known as the'Moyle affair'.