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: Northern Great Plains ecoregion | Statement: [Vermillion River (indirectly via Missouri system), environmentalRegion, Northern Great Plains ecoregion]

Target entity: Northern Great Plains ecoregion
Context triple: [Vermillion River (indirectly via Missouri system), environmentalRegion, Northern Great Plains ecoregion]

• A. Northern Great Plain
  The Northern Great Plain is a large, predominantly flat agricultural and economic region in eastern Hungary that includes major cities such as Debrecen.
• B. Central Great Plains
  The Central Great Plains is a broad grassland region of the central United States characterized by open prairies, a continental climate, and a history of Indigenous habitation and 19th-century frontier expansion.
• C. Flint Hills tallgrass prairie region
  The Flint Hills tallgrass prairie region is a vast, largely unplowed expanse of native grassland in eastern Kansas and northern Oklahoma, renowned for preserving one of the last and largest remaining tracts of tallgrass prairie in North America.
• D. Rio Grande Plains
  The Rio Grande Plains is a semi-arid, brush-covered physiographic region of southern Texas characterized by rolling plains, thorny shrublands, and ranching and oil activities.
• E. Central Great Plains tallgrass prairie
  The Central Great Plains tallgrass prairie is a vast North American grassland ecosystem characterized by deep, fertile soils and dense, tall grasses that support high biodiversity and historically extensive bison herds.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Northern Great Plains ecoregion
Target entity description: The Northern Great Plains ecoregion is a vast temperate grassland region of central North America characterized by open prairies, continental climate, and extensive agricultural and ranching landscapes.

• A. Northern Great Plain
  The Northern Great Plain is a large, predominantly flat agricultural and economic region in eastern Hungary that includes major cities such as Debrecen.
• B. Central Great Plains
  The Central Great Plains is a broad grassland region of the central United States characterized by open prairies, a continental climate, and a history of Indigenous habitation and 19th-century frontier expansion.
• C. Flint Hills tallgrass prairie region
  The Flint Hills tallgrass prairie region is a vast, largely unplowed expanse of native grassland in eastern Kansas and northern Oklahoma, renowned for preserving one of the last and largest remaining tracts of tallgrass prairie in North America.
• D. Rio Grande Plains
  The Rio Grande Plains is a semi-arid, brush-covered physiographic region of southern Texas characterized by rolling plains, thorny shrublands, and ranching and oil activities.
• E. Central Great Plains tallgrass prairie
  The Central Great Plains tallgrass prairie is a vast North American grassland ecosystem characterized by deep, fertile soils and dense, tall grasses that support high biodiversity and historically extensive bison herds.
• F. None of above. chosen