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: "Fort Wentworth in the southwestern New Hampshire town Northumberland is located at the junction of what two rivers?" whose answer is Upper Ammonoosuc River and Connecticut River.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Fort Wentworth location Northumberland New Hampshire
Useful Output:

Doc 1: The fort was built at the junction of the Upper Ammonoosuc River and Connecticut River, in Northumberland, New Hampshire, by soldiers of Colonel Joseph
Doc 2: The fort was built at the junction of the Upper Ammonoosuc River and Connecticut River, in Northumberland, New Hampshire, by soldiers of Colonel Joseph
Doc 3: The Potters, of Groveton, have a long family history that tells of the construction of Fort Wentworth in 1755 by Capt. Robert Rogers.
Doc 4: [MapHist] Fort Wentworth, Northumberland, New Hampshire  new and correct map of the Province of New Hampshire.  [MapHist] Fort Wentworth, Northumberland, New
Doc 5: The fort was built at the junction of the Upper Ammonoosuc River and Connecticut River, in Northumberland, New Hampshire, by soldiers of Colonel Joseph