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 central basin | Statement: [Kaduna River, isLocatedInHydrologicalRegion, Niger River central basin]

Target entity: Niger River central basin
Context triple: [Kaduna River, isLocatedInHydrologicalRegion, Niger River central basin]

• A. Sanaga River basin
  The Sanaga River basin is the extensive watershed in Cameroon that collects and channels rainfall and tributary flows into the Sanaga River, the country’s largest river system and a key resource for hydropower, ecosystems, and local livelihoods.
• B. 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.
• C. 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.
• D. 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.
• E. Eastern Niger Delta
  The Eastern Niger Delta is a coastal region in southern Nigeria known for its complex network of creeks and mangrove swamps, rich oil and gas reserves, and diverse indigenous communities including the Kalabari people.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: isLocatedInHydrologicalRegion
Context triple: [Kaduna River, isLocatedInHydrologicalRegion, Niger River central basin]

• A. hydrologicallyLocatedIn chosen
  Indicates that a water-related feature (such as a river, lake, or watershed) is situated within or associated with a specific geographic or administrative area in terms of hydrology.
• B. hasHydrologicalRegime
  Indicates that one entity (typically a water body or hydrological system) is characterized by, or associated with, a particular pattern or regime of water flow and levels over time.
• C. hasHeadwatersIn
  Indicates that the source or origin of a river, stream, or similar watercourse is located within a specified geographic area or feature.
• D. hasHydrologicalBoundary
  Indicates that one entity serves as a hydrological boundary or limit for another, typically defining the extent of a water-related area or system.
• E. hydrologicallyConnectedTo
  Indicates that two water bodies or hydrological features are linked such that water can flow or be transferred between them, directly or indirectly, through the hydrological system.
• F. None of above.