Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Custer Expedition of 1874 | Statement: [Black Hills Gold Rush, significantEvent, Custer Expedition of 1874]

Target entity: Custer Expedition of 1874
Context triple: [Black Hills Gold Rush, significantEvent, Custer Expedition of 1874]

• 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. 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. McClure expedition
  The McClure expedition was a mid-19th-century British Arctic voyage led by Robert McClure that is credited with the first traversal of the Northwest Passage, albeit partly by sledge over ice.
• D. 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.
• E. 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.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Custer Expedition of 1874
Triple: [Black Hills Gold Rush, significantEvent, Custer Expedition of 1874]

The Custer Expedition of 1874 was a U.S. Army reconnaissance mission led by Lt. Col. George Armstrong Custer into the Black Hills that publicized the region’s gold deposits and helped trigger the Black Hills Gold Rush.

Target entity: Custer Expedition of 1874
Target entity description: The Custer Expedition of 1874 was a U.S. Army reconnaissance mission led by Lt. Col. George Armstrong Custer into the Black Hills that publicized the region’s gold deposits and helped trigger the Black Hills Gold Rush.

• 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. 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. McClure expedition
  The McClure expedition was a mid-19th-century British Arctic voyage led by Robert McClure that is credited with the first traversal of the Northwest Passage, albeit partly by sledge over ice.
• D. 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.
• E. 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.
• F. None of above. chosen