<documents_info>The Louisiana Purchase,The Lewis and Clark Expedition,The California Gold Rush,The Oregon Trail,The Pony Express" </documents_info>
<query>Which document details the acquisition of a large territory of land west of the Mississippi River by the United States from France?</query>
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<documents_info>The Louisiana Purchase,The Lewis and Clark Expedition,The California Gold Rush,The Oregon Trail,The Pony Express" </documents_info>
<query>Which document details the acquisition of a large territory of land west of the Mississippi River by the United States from France?</query>
user
Chunk
assistant
<query>Which document details the acquisition of a large territory of land west of the Mississippi River by the United States from France?</query>
<documents_info>The Louisiana Purchase,The Lewis and Clark Expedition,The California Gold Rush,The Oregon Trail,The Pony Express" </documents_info>