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: Havel river system | Statement: [Schweriner Ufer islands, partOf, Havel river system]

Target entity: Havel river system
Context triple: [Schweriner Ufer islands, partOf, Havel river system]

• A. Plzeň river system
  The Plzeň river system is a network of rivers and streams in and around the city of Plzeň in the Czech Republic, formed by several converging waterways that drain the surrounding region.
• B. Havel River chosen
  The Havel River is a major waterway in northeastern Germany that flows through Berlin and Brandenburg, connecting numerous lakes and serving as an important route for transport and recreation.
• C. Vltava River
  The Vltava River is the longest river in the Czech Republic, flowing through the capital city of Prague and serving as a central feature of its landscape and history.
• D. Svratka–Dyje–Morava–Danube river system
  The Svratka–Dyje–Morava–Danube river system is a major Central European fluvial network that drains much of Moravia and surrounding regions into the Danube, ultimately contributing to the Black Sea basin.
• E. Váh River basin
  The Váh River basin is a major Central European drainage area in Slovakia that collects the waters of the Váh River and its tributaries, shaping the region’s hydrology, landscapes, and settlements.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.