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: Oder River valley | Statement: [Oder Mountains, contains, Oder River valley]

Target entity: Oder River valley
Context triple: [Oder Mountains, contains, Oder River valley]

• A. Vistula basin
  The Vistula basin is the extensive drainage area of Poland’s longest river, the Vistula, encompassing numerous tributaries and their catchments across much of the country.
• B. Odra River basin chosen
  The Odra River basin is the extensive catchment area of the Oder (Odra) River in Central Europe, encompassing parts of the Czech Republic, Poland, and Germany and draining waters from regions such as the Outer Western Carpathians into the Baltic Sea.
• C. Oder River
  The Oder River is a major Central European river that flows through the Czech Republic, Poland, and along the Polish–German border before emptying into the Baltic Sea.
• D. Oder River delta
  The Oder River delta is the low-lying, marshy region where the Oder River empties into the Baltic Sea, forming a complex network of channels, lagoons, and wetlands along the German-Polish coast.
• E. Vistula River
  The Vistula River is Poland’s longest and most important river, flowing from the Carpathian Mountains to the Baltic Sea and passing through major cities such as Kraków and Warsaw.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.