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: Colorado River region | Statement: [Southern Paiute–Chemehuevi, traditionalRegion, Colorado River region]

Target entity: Colorado River region
Context triple: [Southern Paiute–Chemehuevi, traditionalRegion, Colorado River region]

• A. Colorado River Basin
  The Colorado River Basin is the vast watershed in the western United States and northern Mexico that collects and channels water from multiple states and tributaries into the Colorado River, supporting major ecosystems, agriculture, and cities across an arid region.
• B. Colorado River valley chosen
  The Colorado River valley is a broad, scenic corridor carved by the Colorado River, known for its dramatic canyons, fertile floodplains, and vital role in the arid landscapes of the American West.
• C. Lower Colorado River region
  The Lower Colorado River region is an area along the lower course of the Colorado River in the southwestern United States and northwestern Mexico, traditionally inhabited by Indigenous peoples whose cultures and languages are part of the Yuman language family.
• D. Arkansas River region
  The Arkansas River region is a historic and culturally significant area in the central United States shaped by the course of the Arkansas River, long serving as a corridor for Indigenous peoples, trade, and settlement.
• E. Verde River region
  The Verde River region is a culturally and historically significant area of central Arizona characterized by its riparian habitats, canyons, and long-standing Indigenous presence.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.