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: Narew river system | Statement: [Bug, partOf, Narew river system]

Target entity: Narew river system
Context triple: [Bug, partOf, Narew river system]

• A. Narew River chosen
  The Narew River is a major river in northeastern Poland and western Belarus, known for its unique anastomosing channels and as an important waterway feeding into the Vistula River system.
• B. Narewka River
  The Narewka River is a tributary watercourse in northeastern Poland that flows through the Podlasie region and Białowieża Forest before joining the Narew River.
• C. Łeba River
  The Łeba River is a river in northern Poland that flows through the Pomeranian region to the Baltic Sea, passing through and feeding several coastal lakes including Lake Łebsko.
• D. Oder–Neisse river system
  The Oder–Neisse river system is a major Central European drainage basin centered on the Oder and Neisse rivers, forming much of the modern border between Germany and Poland and emptying into the Baltic Sea.
• E. Biebrza River
  The Biebrza River is a major river in northeastern Poland renowned for its extensive marshes and the Biebrza National Park, one of Europe’s most important wetland wildlife refuges.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.