Complex sentence: At on 1 July, the attack on Gommecourt began and the 56th Division to the south, overran the first two German trenches and reached the third trench but a strongpoint at Nameless Farm held out despite several attacks.
Split into simpler sentences: At on 1 July, the attack on Gommecourt began and the 56th Division to the south, overran the first two German trenches. Troops also reached the third trench but a strongpoint at Nameless Farm held out despite several attacks.