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: Battle of the Imjin River | Statement: [20th Century Battlefields, featuresBattle, Battle of the Imjin River]

Target entity: Battle of the Imjin River
Context triple: [20th Century Battlefields, featuresBattle, Battle of the Imjin River]

• A. Battle of the Imjin River (1951) chosen
  The Battle of the Imjin River (1951) was a major Korean War clash in April 1951, in which United Nations forces—most notably British, Belgian, and South Korean troops—fought a large-scale Chinese offensive north of Seoul.
• B. Battle of Unsan
  The Battle of Unsan was a major early engagement of the Korean War in late 1950, marking one of the first large-scale clashes between Chinese forces and United Nations troops and signaling China's full-scale intervention in the conflict.
• C. 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.
• D. 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.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.