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 Canal in England is part of the British canal system and has a village with a remarkable series of 21 locks on the canal?" whose answer is Grand Union Canal.
Each document should contain about 30 words, and these documents should contain useful information.

Query: canals in england with 21 locks in a village
Useful Output:

Doc 1: Hatton Locks are a flight of 21 locks on the Grand Union Canal to the west of Warwick and immediately to the south of the village of Hatton from
Doc 2: Historic Stoke Bruerne, and the nearby two-mile long Blisworth Tunnel, has been named one of the Marvels of the Modern Waterways in a poll
Doc 3: A 'Top Ten' list of iconic waterways sites, voted for by boaters and waterways supporters in an online poll run by the Canal & River Trust.
Doc 4: The famous 'stairway to heaven' flight of 21 locks on the Grand Union Canal in Warwickshire. Little Venice Where the Grand Union Canal meets the
Doc 5: Arguably this is the hardest day on the canal system with 21 deep and wide locks to climb 214 feet to above the town (or is it city?) of Wigan.