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: Mekong River Basin | Statement: [Nam Ngum River, partOf, Mekong River Basin]

Target entity: Mekong River Basin
Context triple: [Nam Ngum River, partOf, Mekong River Basin]

• A. Mekong River chosen
  The Mekong River is one of Asia’s longest and most important rivers, flowing from the Tibetan Plateau through several Southeast Asian countries before emptying into the South China Sea.
• B. Mekong Delta
  The Mekong Delta is a vast, fertile river delta region in southern Vietnam known for its intricate network of waterways, rice paddies, and floating markets.
• C. Namoi River catchment
  The Namoi River catchment is a major river basin in northern New South Wales, Australia, encompassing agricultural lands and tributaries that drain into the Namoi River before joining the Barwon–Darling river system.
• D. Batang Hari River
  The Batang Hari River is the longest river in Sumatra, Indonesia, flowing through several provinces and serving as an important waterway for transportation, agriculture, and local communities.
• E. Musi basin
  The Musi basin is a major river drainage area in South Sumatra, Indonesia, centered on the Musi River and encompassing the city of Palembang and its surrounding lowland regions.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.