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: Khe Sanh campaign | Statement: [Battle of Con Thien, relatedTo, Khe Sanh campaign]

Target entity: Khe Sanh campaign
Context triple: [Battle of Con Thien, relatedTo, Khe Sanh campaign]

• 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 Phuoc Long
  The Battle of Phuoc Long was a pivotal 1974–1975 engagement in the Vietnam War in which North Vietnamese forces captured Phuoc Long Province, revealing the weakness of South Vietnamese defenses and foreshadowing the final offensive against Saigon.
• C. Battle of Con Thien
  The Battle of Con Thien was a protracted and intense 1967 Vietnam War engagement near the Demilitarized Zone, marked by heavy artillery duels, siege-like conditions, and significant U.S. Marine and North Vietnamese casualties.
• D. Khe Sanh
  Khe Sanh is a town in Quảng Trị Province, Vietnam, best known as the site of a major and prolonged siege during the Vietnam War.
• E. Battle of Pleiku
  The Battle of Pleiku was a 1965 Viet Cong attack on a U.S. base in Vietnam’s Central Highlands that prompted major American escalation and the sustained bombing campaign known as Operation Rolling Thunder.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.