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: Sino–Soviet border conflict of 1969 | Statement: [Sino–Soviet split, hasKeyEvent, Sino–Soviet border conflict of 1969]

Target entity: Sino–Soviet border conflict of 1969
Context triple: [Sino–Soviet split, hasKeyEvent, Sino–Soviet border conflict of 1969]

• A. Sino–Soviet border conflict chosen
  The Sino–Soviet border conflict was a series of armed clashes in 1969 between the Soviet Union and the People’s Republic of China along their disputed frontier, marking the peak of tensions in the Sino–Soviet split.
• B. Sino-Vietnamese War
  The Sino-Vietnamese War was a brief but intense 1979 border conflict in which China launched a punitive invasion of northern Vietnam, leading to heavy casualties and lasting regional tensions.
• C. Sino-Indian War
  The Sino-Indian War was a brief but intense 1962 border conflict between China and India that reshaped their bilateral relations and regional power dynamics in the Himalayas.
• D. Nomonhan Incident
  The Nomonhan Incident was a 1939 border war between Japan and the Soviet Union (with Mongolia) near the Khalkhin Gol river that ended in a decisive Soviet victory and helped deter further Japanese expansion into Siberia.
• E. Sino–Soviet split
  The Sino–Soviet split was the major ideological and political rift between the Soviet Union and the People’s Republic of China during the Cold War, which reshaped global communist alliances and international relations in the 1960s and 1970s.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.