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: Spree river system | Statement: [Kupfergraben, partOf, Spree river system]

Target entity: Spree river system
Context triple: [Kupfergraben, partOf, Spree river system]

• A. Spree river basin chosen
  The Spree river basin is the drainage area of the Spree River in eastern Germany, encompassing numerous lakes, wetlands, and tributaries that feed into the river system.
• B. Elde river system
  The Elde river system is a network of rivers and lakes in northeastern Germany that drains much of the Mecklenburg Lake District before flowing into the Elbe.
• C. Shire River basin
  The Shire River basin is a major river drainage area in southern Africa, primarily in Malawi, that collects waters from Lake Malawi and supports significant agricultural, ecological, and urban regions including the area around Lilongwe.
• D. Trysilelva river system
  The Trysilelva river system is a major river network in eastern Norway that drains large inland areas before continuing into Sweden as part of the Klarälven–Göta älv watercourse.
• E. Axios River basin
  The Axios River basin is a major transboundary river system in the Balkans that drains parts of North Macedonia and northern Greece into the Aegean Sea, supporting extensive plains, wetlands, and agricultural areas.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.