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 area | Statement: [Samuel Ajayi Crowther, regionOfActivity, Niger River area]

Target entity: Niger River area
Context triple: [Samuel Ajayi Crowther, regionOfActivity, Niger River area]

• A. Niger River valley chosen
  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. Ubangi River region
  The Ubangi River region is a central African area along the Ubangi River, spanning parts of the Central African Republic and the Democratic Republic of the Congo, known for its linguistic and cultural diversity.
• C. 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.
• D. Gambia River region
  The Gambia River region is a geographic area in West Africa centered around the Gambia River, known for its diverse ecosystems, historical trade routes, and cultural significance to the surrounding communities.
• E. Niger River floodplain
  The Niger River floodplain is a vast, seasonally inundated lowland along the Niger River in West Africa, characterized by wetlands that support agriculture, fishing, and diverse wildlife.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.