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–Vietnam border region | Statement: [Detian Waterfall, locatedIn, China–Vietnam border region]

Target entity: China–Vietnam border region
Context triple: [Detian Waterfall, locatedIn, China–Vietnam border region]

• A. Vietnam–China border region chosen
  The Vietnam–China border region is a mountainous, strategically vital frontier area between northern Vietnam and southern China that has long been a key theater for military campaigns and cross-border interactions.
• B. Guizhou–Yunnan border
  The Guizhou–Yunnan border is the provincial boundary in southwestern China separating Guizhou and Yunnan, characterized by mountainous terrain and ethnically diverse communities.
• C. Sichuan–Yunnan border
  The Sichuan–Yunnan border is the mountainous provincial boundary in southwest China separating Sichuan and Yunnan, known for its rugged terrain, seismic activity, and ethnically diverse communities.
• D. Myanmar–China border
  The Myanmar–China border is an international boundary running through rugged, ethnically diverse highlands in Southeast Asia, serving as a key corridor for trade, migration, and strategic influence between the two countries.
• E. Thai–Cambodian border region
  The Thai–Cambodian border region is a historically contested frontier zone marked by refugee movements, guerrilla activity, and cross-border political and military tensions between Thailand and Cambodia.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.