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 Na San | Statement: [Na San, hasHistoricalEvent, Battle of Na San]

Target entity: Battle of Na San
Context triple: [Na San, hasHistoricalEvent, Battle of Na San]

• A. Battle of Na San chosen
  The Battle of Na San was a major 1952 French Union defensive victory in northwestern Vietnam, where a fortified airhead successfully repelled repeated Viet Minh assaults and influenced later strategies in the First Indochina War.
• B. Battle of Huachi
  The Battle of Huachi was a significant early 19th-century military engagement in present-day Ecuador during the struggle against Spanish colonial rule, remembered for a major royalist victory that temporarily stalled the independence movement.
• C. Battle of Nanshan
  The Battle of Nanshan was a major 1904 land engagement of the Russo-Japanese War in which Japanese forces assaulted and captured heavily fortified Russian positions near Port Arthur, showcasing Japan’s growing military power.
• D. Battle of Changde
  The Battle of Changde was a major World War II clash in 1943 between Chinese and Japanese forces in Hunan province, notable for intense urban combat, heavy casualties, and the use of chemical weapons by Japan.
• E. Battle of Caishi
  The Battle of Caishi was a pivotal 1161 naval engagement on the Yangtze River in which the Southern Song dynasty decisively repelled a Jurchen Jin invasion, helping to secure its continued survival.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.