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: Operation Lam Son 719 | Statement: [Operation Dewey Canyon II, supportedOperation, Operation Lam Son 719]

Target entity: Operation Lam Son 719
Context triple: [Operation Dewey Canyon II, supportedOperation, Operation Lam Son 719]

• A. Operation Lam Son 719 chosen
  Operation Lam Son 719 was a 1971 South Vietnamese and U.S.-supported incursion into Laos aimed at disrupting the Ho Chi Minh Trail during the Vietnam War, which ultimately exposed serious weaknesses in the South Vietnamese military.
• B. 1975 Spring Offensive
  The 1975 Spring Offensive was the final large-scale military campaign by North Vietnamese forces that rapidly led to the collapse of South Vietnam and the end of the Vietnam War.
• C. Nguyen Hue Offensive
  The Nguyen Hue Offensive, better known as the Easter Offensive, was a major 1972 North Vietnamese conventional military campaign against South Vietnam during the Vietnam War.
• D. 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.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.