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: Union Army cavalry | Statement: [Army of the Frontier, branch, Union Army cavalry]

Target entity: Union Army cavalry
Context triple: [Army of the Frontier, branch, Union Army cavalry]

• A. Union Army Cavalry Corps chosen
  The Union Army Cavalry Corps was the mounted combat branch of the Union Army during the American Civil War, known for its reconnaissance, screening, and raiding operations against Confederate forces.
• B. Confederate cavalry
  Confederate cavalry were the mounted troops of the Confederate States Army in the American Civil War, known for their mobility, reconnaissance, and raiding operations behind Union lines.
• C. 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.
• D. California volunteer cavalry
  The California volunteer cavalry was a Union mounted regiment of volunteer soldiers from California that served in the American Civil War, primarily conducting frontier defense and campaigns in the Western territories.
• E. Reserve Cavalry
  Reserve Cavalry was the dedicated mounted reserve formation of Napoleon’s French Armée du Nord, intended for rapid, decisive shock action and exploitation on the battlefield.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.