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: "Who canceled the project for the Landkreuzer P. 1000 Ratte, which would have surpassed the Panzer VIII Maus as being the heaviest fully enclosed armoured fighting vehicle ever built?" whose answer is Minister of Armaments Albert Speer.
Each document should contain about 30 words, and these documents should contain useful information.

Query: cancellation of Landkreuzer P. 1000 Ratte
Useful Output:

Doc 1:  Landkreuzer P1000 Ratte, designed for WWII. It was later cancelled as the large size and weight would have rendered the tank unable to cross
Doc 2: It was designed in 1942 by Krupp with the approval of Adolf Hitler, but the project was canceled by Albert Speer in early 1943 and no tank was
Doc 3: It would have been the largest super-heavy tank if it was constructed and not cancelled. Landkreuzer was a german tank project that started 1942.
Doc 4: Even though Speer cancelled both Landkreuzer projects in 1943, the Rat's revival depended on the effectiveness of the Mouse. Panzerkampfwagen «
Doc 5: It did intrigue him but the project was cancelled by Speer before it ever got beyond some sketches and drawings. Speer rightfully didn't see