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 | Statement: [Damansky Island, conflict, Sino-Soviet border conflict]

Target entity: Sino-Soviet border conflict
Context triple: [Damansky Island, conflict, Sino-Soviet border conflict]

• 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-Soviet conflict of 1929
  The Sino-Soviet conflict of 1929 was a brief armed clash between the Soviet Union and the Republic of China over control of the Chinese Eastern Railway in Manchuria.
• 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. Battle of Changban bridge incident
  The Battle of Changban bridge incident is a famous episode from the late Eastern Han period in which the warrior Zhang Fei reportedly held off pursuing enemy forces at a bridge to protect Liu Bei’s retreat, becoming a legendary symbol of bravery in Chinese history and the Romance of the Three Kingdoms.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.