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: Niger River basin | Statement: [Niger Basin Authority, basinManaged, Niger River basin]

Target entity: Niger River basin
Context triple: [Niger Basin Authority, basinManaged, Niger River basin]

• A. Niger River valley
  The Niger River valley is a fertile and historically significant region in West Africa that has long supported dense human settlement, agriculture, and trade along the course of the Niger River.
• B. Athi River basin
  The Athi River basin is a major drainage basin in Kenya that collects waters from rivers such as the Nairobi River and ultimately feeds into the Indian Ocean.
• C. Niger River chosen
  The Niger River is a major West African river that flows in a great arc through countries including Guinea, Mali, Niger, and Nigeria before emptying into the Atlantic Ocean.
• D. Nile Basin
  The Nile Basin is the extensive drainage region of the Nile River, spanning multiple countries in northeastern Africa and supporting diverse ecosystems and large human populations dependent on its water resources.
• E. Volta River basin
  The Volta River basin is a major West African drainage basin encompassing the catchment area of the Volta River and its tributaries across several countries, including Ghana, Burkina Faso, and Togo.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: basinManaged
Context triple: [Niger Basin Authority, basinManaged, Niger River basin]

• A. basinState
  Indicates that a state contains or encompasses the drainage basin or watershed of a particular river or water system.
• B. basin
  Indicates a geographic area where surface water drains into a common outlet, such as a river, lake, or ocean.
• C. basinAgency chosen
  Indicates that an agency has jurisdiction over, manages, or is responsible for a particular basin or watershed area.
• D. basinType
  Indicates the specific kind or classification of a basin associated with an entity (e.g., by form, function, or hydrological role).
• E. basinPartOf
  Indicates that one basin is a component or subdivision of a larger basin or basin system.
• F. None of above.