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 were the Royal Navy Battleships, that were considered the first fast battleships and were used in WWI and WWII?" whose answer is Queen Elizabeth"-class battleships.
Each document should contain about 30 words, and these documents should contain useful information.

Query: first fast battleships of the Royal Navy used in WWI and WWII
Useful Output:

Doc 1: During the First World War, the Royal Navy was unique in operating both a Fast Division of purpose-built battleships and a separate force of battlecruisers.
Doc 2: The term fast battleship is in relation to the standard speed of pre-war Dreadnoughts, 21 knots, not necessarily 27 knots or more.
Doc 3: These are ONLY the export designs: Battleships: Armstrong Design 779 for Greece - 1913 - 163,37 x 31 x 8,08m, 40km/h, 18.500tons,
Doc 4: British Battleships of WW1 comprised three types of vessels: Dreadnoughts, 21 of them which made the meaty bulk of the Royal Navy, 12 Battlecruisers, and 51
Doc 5: Dreadnought was the first major warship powered by turbines. She also included a number of other features indicating an increased emphasis on speed: An improved