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 river is the castle that a stone was taken from to build the L-plan tower for Barscobe Castle on?" whose answer is River Dee.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Barscobe Castle stone L-plan tower river
Useful Output:

Doc 1: This Routeing and Consultation Document has been prepared on behalf of ScottishPower Energy Networks and relates to proposals to upgrade the
Doc 2: The L-plan tower was constructed using stone taken from Threave Castle. The main block is three storeys high with the stair wing one storey
Doc 3: From the Main Street all you can see is the facade of the former Tower Hotel, but go round the back to see a hint of this former L plan 15th
Doc 4: The tower house is an unusual, and unusually large, variant of the L-plan form widely adopted in Jacobean Scotland. Four storeys high, its design manifests the
Doc 5: Description. Dated 1648 over door. L-plan tower house, 2-storey with. attic, single-storey addition of 18th/19th century to W. The. tower was