Complex sentence: He was wounded in April 1917 and gassed in September the same year, and after his release from hospital was initially posted to Seaton Delaval, a mining village in Northumberland, where he wrote poems including'Lying awake in the ward'.
Split into simpler sentences: He was wounded in April 1917 and gassed in September the same year. After his release from hospital he was posted to Seaton Delaval, a mining village in Northumberland, where he wrote poems including'Lying awake in the ward'.