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: United States western frontier | Statement: [Territory South of the River Ohio, partOf, United States western frontier]

Target entity: United States western frontier
Context triple: [Territory South of the River Ohio, partOf, United States western frontier]

• A. In the American West
  "In the American West" is a landmark photographic series and book by Richard Avedon that presents stark, large-format portraits of everyday people from the western United States, challenging romanticized myths of the region.
• B. Western Territory of the United States
  The Western Territory of the United States was an early American frontier region encompassing lands west of the original states that were organized for settlement and eventual statehood after the Revolutionary War.
• C. Frontier (North America)
  Frontier (North America) is the name used in the North American market for Nissan's mid-size pickup truck line.
• D. Trans-Appalachian West chosen
  The Trans-Appalachian West is the broad frontier region of the early United States lying west of the Appalachian Mountains, encompassing territories that were gradually settled and organized into new states during the late 18th and early 19th centuries.
• E. Comancheria
  Comancheria was the vast 18th–19th century territory controlled by the Comanche people across parts of present-day Texas, New Mexico, Oklahoma, Colorado, and Kansas.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.