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: Plains Indian Sign Language | Statement: [Dull Knife, languageSpoken, Plains Indian Sign Language]

Target entity: Plains Indian Sign Language
Context triple: [Dull Knife, languageSpoken, Plains Indian Sign Language]

• A. Blackfoot language
  Blackfoot language is an Algonquian Indigenous language traditionally spoken by the Blackfoot (Niitsitapi) people of the northern Great Plains in what is now western Canada and the United States.
• B. Osage language
  The Osage language is a Siouan language traditionally spoken by the Osage people of the central United States, now the focus of revitalization and preservation efforts.
• C. Nakoda language
  The Nakoda language is an Indigenous Siouan language of the Stoney Nakoda people of the Canadian Plains, closely related to other Dakota and Nakota dialects.
• D. Kalispel-Pend d’Oreille language
  The Kalispel-Pend d’Oreille language is an Indigenous Salishan language traditionally spoken by the Kalispel and Pend d’Oreille peoples of the Pacific Northwest region of North America.
• E. Lakota language
  The Lakota language is a Native American Siouan language spoken by the Lakota people, known for its rich oral tradition and ongoing revitalization efforts.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Plains Indian Sign Language
Triple: [Dull Knife, languageSpoken, Plains Indian Sign Language]

Plains Indian Sign Language is a historical intertribal sign language used across the North American Great Plains to facilitate communication among speakers of different Indigenous spoken languages.

Target entity: Plains Indian Sign Language
Target entity description: Plains Indian Sign Language is a historical intertribal sign language used across the North American Great Plains to facilitate communication among speakers of different Indigenous spoken languages.

• A. Blackfoot language
  Blackfoot language is an Algonquian Indigenous language traditionally spoken by the Blackfoot (Niitsitapi) people of the northern Great Plains in what is now western Canada and the United States.
• B. Osage language
  The Osage language is a Siouan language traditionally spoken by the Osage people of the central United States, now the focus of revitalization and preservation efforts.
• C. Nakoda language
  The Nakoda language is an Indigenous Siouan language of the Stoney Nakoda people of the Canadian Plains, closely related to other Dakota and Nakota dialects.
• D. Kalispel-Pend d’Oreille language
  The Kalispel-Pend d’Oreille language is an Indigenous Salishan language traditionally spoken by the Kalispel and Pend d’Oreille peoples of the Pacific Northwest region of North America.
• E. Lakota language
  The Lakota language is a Native American Siouan language spoken by the Lakota people, known for its rich oral tradition and ongoing revitalization efforts.
• F. None of above. chosen