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: Po river system | Statement: [Bormida, riverSystem, Po river system]

Target entity: Po river system
Context triple: [Bormida, riverSystem, Po river system]

• A. 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.
• B. Po river basin chosen
  The Po river basin is the largest drainage basin in Italy, encompassing a vast network of rivers and tributaries that flow across northern Italy into the Adriatic Sea.
• C. Enz river system
  The Enz river system is a network of rivers and streams in southwestern Germany that drains parts of the Black Forest and flows through Baden-Württemberg as a tributary of the Neckar.
• D. Aar river system
  The Aar river system is a major Swiss river network in the Alps and Swiss Plateau that ultimately drains into the Rhine, collecting waters from numerous tributaries and alpine catchments.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.