Stephen Harriman Long expedition

Target entity: Stephen Harriman Long expedition
Context triple: [Edwin James, employer, Stephen Harriman Long expedition]

• A. Washburn–Langford–Doane Expedition
  The Washburn–Langford–Doane Expedition was an 1870 exploratory survey of the Yellowstone region whose reports helped lead to the creation of Yellowstone National Park.
• B. Lewis and Clark Expedition
  The Lewis and Clark Expedition was an early 19th-century American exploratory journey that mapped and studied the newly acquired western territories, establishing routes and relations that greatly expanded U.S. geographic and scientific knowledge.
• C. Powell Geographic Expedition
  The Powell Geographic Expedition was a pioneering 19th-century American exploration led by John Wesley Powell that conducted the first scientific surveys and navigations of the Colorado River and the Grand Canyon.
• D. Powder River Expedition
  The Powder River Expedition was an 1865 U.S. Army campaign against Plains tribes in present-day Wyoming and Montana, aimed at securing overland travel routes and asserting federal control in the northern Great Plains.
• E. Red River Expedition
  The Red River Expedition was a Canadian military campaign in 1870 sent to the Red River Colony (in present-day Manitoba) to assert federal authority and respond to Louis Riel’s provisional government during the Red River Rebellion.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Stephen Harriman Long expedition
Target entity description: The Stephen Harriman Long expedition was a U.S. government-sponsored early 19th-century exploratory journey that surveyed the Great Plains and Rocky Mountain regions, significantly shaping American geographic and scientific understanding of the West.

• A. Washburn–Langford–Doane Expedition
  The Washburn–Langford–Doane Expedition was an 1870 exploratory survey of the Yellowstone region whose reports helped lead to the creation of Yellowstone National Park.
• B. Lewis and Clark Expedition
  The Lewis and Clark Expedition was an early 19th-century American exploratory journey that mapped and studied the newly acquired western territories, establishing routes and relations that greatly expanded U.S. geographic and scientific knowledge.
• C. Powell Geographic Expedition
  The Powell Geographic Expedition was a pioneering 19th-century American exploration led by John Wesley Powell that conducted the first scientific surveys and navigations of the Colorado River and the Grand Canyon.
• D. Powder River Expedition
  The Powder River Expedition was an 1865 U.S. Army campaign against Plains tribes in present-day Wyoming and Montana, aimed at securing overland travel routes and asserting federal control in the northern Great Plains.
• E. Red River Expedition
  The Red River Expedition was a Canadian military campaign in 1870 sent to the Red River Colony (in present-day Manitoba) to assert federal authority and respond to Louis Riel’s provisional government during the Red River Rebellion.
• F. None of above. chosen