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: China–Mongolia border agreements | Statement: [Soviet–Mongolian border agreements (20th century), relatedTo, China–Mongolia border agreements]

Target entity: China–Mongolia border agreements
Context triple: [Soviet–Mongolian border agreements (20th century), relatedTo, China–Mongolia border agreements]

• A. China–Mongolia border chosen
  The China–Mongolia border is the international boundary separating the People’s Republic of China and Mongolia, stretching across remote deserts, grasslands, and mountain regions in East and Central Asia.
• B. Soviet–Mongolian border agreements (20th century)
  The Soviet–Mongolian border agreements of the 20th century were a series of treaties that formally defined and adjusted the frontier between the Soviet Union and Mongolia, shaping the modern boundary between Mongolia and Russia.
• C. Mongolia–Manchukuo border
  The Mongolia–Manchukuo border was the frontier between Mongolia and the Japanese puppet state of Manchukuo, notorious as the site of major 1939 clashes between Soviet–Mongolian and Japanese–Manchukuoan forces.
• D. Mongolia–Russia border
  The Mongolia–Russia border is the long international boundary separating Mongolia from the Russian Federation across the steppes, mountains, and river valleys of Central and North Asia.
• E. Treaty on the Russian-Chinese Border (1991)
  The Treaty on the Russian-Chinese Border (1991) is a post–Cold War agreement that settled major sections of the long-disputed frontier between Russia and China, laying groundwork for improved bilateral relations and later border accords.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.