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 Combat Base | Statement: [Operation Niagara, supported, Khe Sanh Combat Base]

Target entity: Khe Sanh Combat Base
Context triple: [Operation Niagara, supported, Khe Sanh Combat Base]

• A. Khe Sanh chosen
  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.
• B. Khe Sanh Combat Base museum
  The Khe Sanh Combat Base museum is a historical site and exhibition center in Vietnam that preserves and interprets the former U.S. Marine combat base and the pivotal Battle of Khe Sanh during the Vietnam War.
• C. Battle of Khe Sanh
  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.
• D. Dong Ha Combat Base
  Dong Ha Combat Base was a key U.S. Marine Corps and Army installation in Quang Tri Province that served as a major logistical and defensive hub near the Vietnamese Demilitarized Zone during the Vietnam War.
• E. Pork Chop Hill outpost
  Pork Chop Hill outpost was a heavily contested United Nations forward position in Korea that became the focal point of brutal infantry battles during the Korean War.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.