Triple

Target entity: Corps of Discovery Expedition
Context triple: [Lewis and Clark Expedition, alsoKnownAs, Corps of Discovery Expedition]

• A. Lewis and Clark Expedition chosen
  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.
• B. 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.
• C. Pike expedition to the headwaters of the Mississippi River
  The Pike expedition to the headwaters of the Mississippi River was an early 19th-century U.S. exploratory mission led by Zebulon Pike to locate the river’s source and assess the northern Louisiana Purchase region.
• D. Lewis & Clark Pioneers
  The Lewis & Clark Pioneers are the intercollegiate athletic teams representing Lewis & Clark College in NCAA Division III competition.
• E. Pioneer Column expedition
  The Pioneer Column expedition was an 1890 British colonial venture that led a force of settlers and police north from South Africa to occupy and establish white rule over what became Southern Rhodesia (now Zimbabwe).
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.