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: Clutha River system | Statement: [Mata-Au, partOf, Clutha River system]

Target entity: Clutha River system
Context triple: [Mata-Au, partOf, Clutha River system]

• A. Clutha River
  The Clutha River, also known by its Māori name Mata-Au, is one of New Zealand's largest and swiftest rivers, flowing from Lake Wānaka through Otago to the Pacific Ocean.
• B. Llewellyn River
  The Llewellyn River is a glacially fed river in northwestern North America that carries meltwater from the Juneau Icefield through remote, rugged terrain toward downstream lakes and waterways.
• C. Clutha River / Mata-Au chosen
  The Clutha River / Mata-Au is one of New Zealand’s largest and swiftest rivers, flowing through the South Island from the Southern Alps to the Pacific Ocean and known for its hydroelectric power and scenic landscapes.
• D. Hawke's Bay river system
  The Hawke's Bay river system is a network of rivers and streams in New Zealand’s Hawke’s Bay region that drains the surrounding highlands and supports local agriculture, ecosystems, and settlements.
• E. Canterbury river system
  The Canterbury river system is a network of braided and alpine-fed rivers in New Zealand’s South Island that drain the Canterbury region from the Southern Alps to the Pacific Ocean.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.