Complex sentence: At the Gommecourt Salient the German trenches curved around a chateau and its parkland and gap of separated the Gommecourt diversion from the northern edge of the main attack.
Split into simpler sentences: At the Gommecourt Salient the German trenches curved around a chateau and its parkland. A gap of separated the Gommecourt diversion and the northern edge of the main attack.