Complex sentence: Among the documents now held at the Notts Archives Offices is a detailed map of the city showing the sites the Germans intended to target which included gas works, electricity plants, railways, the Royal Ordnance Factory, Raleigh and chemical factories.
Split into simpler sentences: Among the documents now held at the Notts Archives Offices is a detailed map of the town showing the sites the Germans intended to target. These included gas works, electricity plants, railways, the Royal Ordnance Factory, Raleigh and chemical factories.