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 Khe Sanh (related phase) | Statement: [Tet Offensive, significantEvent, Battle of Khe Sanh (related phase)]

Target entity: Battle of Khe Sanh (related phase)
Context triple: [Tet Offensive, significantEvent, Battle of Khe Sanh (related phase)]

• A. Battle of Khe Sanh chosen
  The Battle of Khe Sanh was a major and protracted siege in early 1968 in which U.S. Marines and South Vietnamese forces defended a remote base against a large-scale North Vietnamese assault, becoming one of the most famous and controversial engagements of the Vietnam War.
• B. Battle of Ia Drang
  The Battle of Ia Drang was a pivotal 1965 engagement between U.S. and North Vietnamese forces that marked the first major large-scale helicopter air assault and set the tone for American ground combat in the Vietnam War.
• C. Tet Offensive
  The Tet Offensive was a major 1968 campaign of surprise attacks by North Vietnamese and Viet Cong forces across South Vietnam that dramatically shifted U.S. public opinion and marked a turning point in the Vietnam War.
• D. Battle of Hue
  The Battle of Hue was a major and brutal urban engagement during the 1968 Tet Offensive in the Vietnam War, in which U.S. and South Vietnamese forces fought North Vietnamese and Viet Cong troops for control of the historic city of Huế.
• E. Battle of Dien Bien Phu
  The Battle of Dien Bien Phu was a decisive 1954 confrontation in Vietnam in which Viet Minh forces defeated the French, leading to the end of French colonial rule in Indochina.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.