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: Cavalry Corps, Army of the Potomac | Statement: [1st Massachusetts Cavalry, partOf, Cavalry Corps, Army of the Potomac]

Target entity: Cavalry Corps, Army of the Potomac
Context triple: [1st Massachusetts Cavalry, partOf, Cavalry Corps, Army of the Potomac]

• A. III Corps, Army of the Potomac
  III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
• B. I Corps (Union Army of the Potomac)
  I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
• C. 2nd Cavalry Group
  The 2nd Cavalry Group was a U.S. Army mechanized cavalry unit in World War II known for reconnaissance, screening, and security operations in support of major armored and infantry formations.
• D. French III Corps
  The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
• E. United States Cavalry
  The United States Cavalry was a historic mounted combat branch of the U.S. Army that played a key role in 19th- and early 20th-century American military campaigns, including the Indian Wars, the Civil War, and the Spanish–American War.
• 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: Cavalry Corps, Army of the Potomac
Triple: [1st Massachusetts Cavalry, partOf, Cavalry Corps, Army of the Potomac]

The Cavalry Corps, Army of the Potomac was the primary mounted arm of the Union’s principal Eastern army during the American Civil War, responsible for reconnaissance, screening, raiding, and cavalry combat in major campaigns such as Gettysburg and the Overland Campaign.

Target entity: Cavalry Corps, Army of the Potomac
Target entity description: The Cavalry Corps, Army of the Potomac was the primary mounted arm of the Union’s principal Eastern army during the American Civil War, responsible for reconnaissance, screening, raiding, and cavalry combat in major campaigns such as Gettysburg and the Overland Campaign.

• A. III Corps, Army of the Potomac
  III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
• B. I Corps (Union Army of the Potomac)
  I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
• C. 2nd Cavalry Group
  The 2nd Cavalry Group was a U.S. Army mechanized cavalry unit in World War II known for reconnaissance, screening, and security operations in support of major armored and infantry formations.
• D. French III Corps
  The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
• E. United States Cavalry
  The United States Cavalry was a historic mounted combat branch of the U.S. Army that played a key role in 19th- and early 20th-century American military campaigns, including the Indian Wars, the Civil War, and the Spanish–American War.
• F. None of above. chosen