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: Copper River Valley | Statement: [Glennallen, Alaska, region, Copper River Valley]

Target entity: Copper River Valley
Context triple: [Glennallen, Alaska, region, Copper River Valley]

• A. Copper River Basin chosen
  The Copper River Basin is a broad interior region of southcentral Alaska characterized by glacially fed rivers, wetlands, and tundra, known for its rich wildlife habitat and subsistence resources.
• B. Copper River
  The Copper River is a major glacial-fed river in south-central Alaska known for its rich salmon runs, extensive delta, and dramatic canyon landscapes.
• C. Pend Oreille River valley
  The Pend Oreille River valley is a scenic, sparsely populated corridor in northeastern Washington and northern Idaho carved by the Pend Oreille River, known for its forested mountains, wildlife, and outdoor recreation.
• D. Tanana Valley
  The Tanana Valley is a broad interior region of Alaska defined by the Tanana River and known for its boreal forests, permafrost landscapes, and subarctic climate.
• E. Skagway River valley
  Skagway River valley is a glacially carved valley in southeastern Alaska that carries the Skagway River from the coastal mountains down to the town of Skagway and its nearby fjords.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.