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: Attack on the U.S. Embassy in Saigon (1968) | Statement: [U.S. Embassy Saigon, notableEvent, Attack on the U.S. Embassy in Saigon (1968)]

Target entity: Attack on the U.S. Embassy in Saigon (1968)
Context triple: [U.S. Embassy Saigon, notableEvent, Attack on the U.S. Embassy in Saigon (1968)]

• A. 1963 South Vietnamese coup
  The 1963 South Vietnamese coup was a military overthrow of President Ngô Đình Diệm that ended his regime and dramatically altered the course of the Vietnam War.
• B. Tet Offensive chosen
  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.
• C. Gulf of Tonkin incident
  The Gulf of Tonkin incident was a 1964 naval confrontation between North Vietnam and the United States that led to a major escalation of U.S. military involvement in the Vietnam War.
• D. 1964 South Vietnamese coup d'état
  The 1964 South Vietnamese coup d'état was a military power seizure in South Vietnam that reshaped the country's leadership amid the Vietnam War and ongoing political instability.
• E. 1965 South Vietnamese coup
  The 1965 South Vietnamese coup was a military power struggle in South Vietnam that led to the consolidation of control by a new junta amid the political instability of the Vietnam War era.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.