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: Ulla River system | Statement: [Sar River, hydrologicalSystem, Ulla River system]

Target entity: Ulla River system
Context triple: [Sar River, hydrologicalSystem, Ulla River system]

• A. 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.
• B. Ondava River system
  The Ondava River system is a network of rivers and streams in eastern Slovakia that drains part of the Carpathian region and ultimately contributes to the Bodrog and Tisza river basins.
• C. 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.
• D. Reisa river system
  The Reisa river system is a network of rivers and tributaries in northern Norway centered around the Reisaelva, known for its deep canyon landscapes, salmon fishing, and scenic wilderness.
• E. Ulla River
  Ulla River is a tributary watercourse in Eastern Europe that feeds into the larger Daugava River system.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Ulla River system
Target entity description: The Ulla River system is a major river basin in northwestern Spain that drains much of Galicia into the Atlantic Ocean, supporting important ecological habitats and regional water use.

• A. 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.
• B. Ondava River system
  The Ondava River system is a network of rivers and streams in eastern Slovakia that drains part of the Carpathian region and ultimately contributes to the Bodrog and Tisza river basins.
• C. 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.
• D. Reisa river system
  The Reisa river system is a network of rivers and tributaries in northern Norway centered around the Reisaelva, known for its deep canyon landscapes, salmon fishing, and scenic wilderness.
• E. Ulla River
  Ulla River is a tributary watercourse in Eastern Europe that feeds into the larger Daugava River system.
• F. None of above. chosen