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 Plains tribes | Statement: [Fort Phil Kearny, primaryAdversary, Northern Plains tribes]

Target entity: Northern Plains tribes
Context triple: [Fort Phil Kearny, primaryAdversary, Northern Plains tribes]

• A. Plains Indians chosen
  The Plains Indians were diverse Native American peoples of the Great Plains known for their nomadic buffalo-hunting cultures, horse-centered lifestyles, and distinctive tipi dwellings.
• B. Great Sioux Nation
  The Great Sioux Nation is a confederation of Lakota, Dakota, and Nakota Sioux tribes historically occupying a vast territory of the Northern Great Plains and known for their rich cultural traditions and resistance to U.S. expansion.
• C. Eastern Siouan peoples
  The Eastern Siouan peoples are a group of Indigenous nations of the Eastern Woodlands region of North America who speak or historically spoke Siouan languages and share related cultural and historical traditions.
• D. Assiniboine people
  The Assiniboine people are a Native American/First Nations group of the Northern Plains, historically nomadic bison hunters whose traditional territory spans parts of present-day Canada and the United States.
• E. Sioux people
  The Sioux people are a group of Native American tribes and First Nations peoples of the Great Plains, known for their rich cultural traditions, warrior society, and historical resistance to U.S. expansion.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.