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: Zambezi River | Statement: [Northwestern Zambia, headwatersOf, Zambezi River]

Target entity: Zambezi River
Context triple: [Northwestern Zambia, headwatersOf, Zambezi River]

• A. Zambezi River chosen
  The Zambezi River is one of Africa’s largest rivers, famed for Victoria Falls and its role as a vital waterway and natural border in southern Africa.
• B. Kafue River
  The Kafue River is one of Zambia’s major rivers, flowing through the Kafue Flats and Kafue National Park before joining the Zambezi and supporting significant hydropower, agriculture, and wildlife habitats.
• C. Limpopo River
  The Limpopo River is a major river in southern Africa that flows eastward from central southern Africa to the Indian Ocean, forming parts of the borders between several countries including South Africa, Botswana, and Zimbabwe.
• D. Tugela River
  The Tugela River is one of South Africa’s major rivers, flowing through the province of KwaZulu-Natal from the Drakensberg Mountains to the Indian Ocean.
• E. Kosi
  Kosi is a major Himalayan river in northern India and Nepal, often called the "Sorrow of Bihar" for its frequent and devastating floods before joining the Ganges.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: headwatersOf
Context triple: [Northwestern Zambia, headwatersOf, Zambezi River]

• A. majorRiverSource
  Indicates that one entity is the primary originating source or headwaters location of a major river.
• B. sourceOfWatercourse chosen
  Indicates that one entity is the origin or starting point from which a watercourse (such as a river or stream) begins or flows.
• C. mouthOfTheWatercourse
  Indicates the location where a watercourse ends and flows into a larger body of water.
• D. receivesFreshwaterFrom
  Indicates that one entity is supplied with or obtains freshwater from another entity as its source.
• E. tributarySystem
  Indicates a relationship where one political entity pays regular tribute or offers deference to another, acknowledging the latter’s superior authority or status.
• F. None of above.