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: Chosin Reservoir campaign | Statement: [United States X Corps, notableOperation, Chosin Reservoir campaign]

Target entity: Chosin Reservoir campaign
Context triple: [United States X Corps, notableOperation, Chosin Reservoir campaign]

• A. Battle of Chosin Reservoir chosen
  The Battle of Chosin Reservoir was a brutal 1950 Korean War campaign in freezing conditions where United Nations forces, primarily U.S. Marines, fought their way out of encirclement by vastly larger Chinese forces.
• B. Battle of the Ch'ongch'on River
  The Battle of the Ch'ongch'on River was a major 1950 Korean War engagement in which Chinese forces launched a large-scale offensive that shattered United Nations lines and forced a retreat from North Korea.
• C. Battle of Chipyong-ni
  The Battle of Chipyong-ni was a pivotal Korean War engagement in February 1951 where United Nations forces, including U.S. and French units, successfully withstood and repelled large-scale Chinese attacks, marking a turning point in the conflict.
• D. Battle of Pusan Perimeter
  The Battle of Pusan Perimeter was a crucial early Korean War engagement in 1950 in which United Nations and South Korean forces halted the North Korean advance in southeast Korea, preventing their defeat and enabling a later counteroffensive.
• E. Battle of Kapyong
  The Battle of Kapyong was a pivotal Korean War engagement in April 1951 in which United Nations forces, including Canadian troops, successfully halted a major Chinese offensive north of Seoul.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.