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 Delta | Statement: [Chugach Mountains, drainageTo, Copper River Delta]

Target entity: Copper River Delta
Context triple: [Chugach Mountains, drainageTo, Copper River Delta]

• A. Yukon–Kuskokwim Delta
  The Yukon–Kuskokwim Delta is a vast, sparsely populated river delta in western Alaska known for its wetlands, rich subsistence lifestyle, and predominantly Central Alaskan Yup’ik communities.
• B. Columbia River estuary
  The Columbia River estuary is the broad, tidally influenced transition zone where the Columbia River meets the Pacific Ocean, supporting rich ecosystems, major shipping routes, and coastal communities in the Pacific Northwest.
• C. Mackenzie River delta
  The Mackenzie River delta is a vast Arctic wetland in northwestern Canada, characterized by a complex network of channels, lakes, and islands that form one of the largest river deltas in North America.
• D. Willapa Bay
  Willapa Bay is a large, shallow estuarine bay on the southwest coast of Washington State, known for its rich shellfish beds, wildlife habitat, and relatively undeveloped shoreline.
• E. Copper River chosen
  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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.