Complex sentence: Sumner is a coastal seaside suburb of Christchurch, New Zealand and was surveyed and named in 1849 in honour of John Bird Sumner, the then newly appointed Archbishop of Canterbury and president of the Canterbury Association.
Split into simpler sentences: Sumner is a coastal seaside suburb of Christchurch, New Zealand. Surveyed and named in 1849 in honour of John Bird Sumner, the then newly appointed Archbishop of Canterbury and president of the Canterbury Association.