You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What battle took place during an offensive that pushed the Germans out of France, forcing them to retreat beyond the Hindenburg Line?" whose answer is Battle of the Scarpe.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Battle during the Hundred Days Offensive that drove the Germans out of France and beyond the Hindenburg Line
Useful Output:

Doc 1: German commanders redirected their offensive towards the vital rail hub of Amiens. With German armies less than 25km from Paris, French and
Doc 2: The Hundred-Day Allied Attack began on 8th August 1918 · The first day of the Allied counter-attack is known as a 'Black Day' by the German Army.
Doc 3: The operation's success in breaking the Hindenburg Line resulted in German capitulation and the signing of the armistice five weeks later.
Doc 4: The Australian Corps was part of a British-led surprise attack on German lines that started on 8 August 1918.
Doc 5: The second was the victorious Allied offensive in late 1918 which steadily pushed back the German Army in France and Belgium, and ended the