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 treaty was signed by the United Kingdom and President James Polk?" whose answer is Oregon Treaty.
Each document should contain about 30 words, and these documents should contain useful information.

Query: treaties between the United Kingdom and James Polk
Useful Output:

Doc 1: The Oregon Treaty · With the United States expanding westward, President Polk look to extend US claims out the Pacific Ocean. The Oregon Treaty
Doc 2: A treaty between the United States of America and Her Majesty the Queen of the United Kingdom of Great Britain and Ireland was concluded and signed
Doc 3: The United States and Great Britain signed the Treaty of Oregon on June 15, 1846, ending 28 years of joint occupancy of the Pacific Northwest.
Doc 4: 06/15/1846. Oregon Treaty signed between United States and Britain. Established 49th parallel as the border; reserved Vancouver Island for
Doc 5: Despite long negotiations, the United States and the British Empire could not agree on a boundary to divide the territory.