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: Katun River basin | Statement: [Kumandian, historicalRegion, Katun River basin]

Target entity: Katun River basin
Context triple: [Kumandian, historicalRegion, Katun River basin]

• A. Katun River chosen
  The Katun River is a major mountain river in the Altai Republic of Russia, known for its turquoise waters, dramatic gorges, and significance as one of the principal headwaters of the Ob River.
• B. Yenisei River basin
  The Yenisei River basin is the vast drainage area of the Yenisei River in Siberia, encompassing diverse mountain, taiga, and tundra landscapes and forming one of the largest river systems flowing into the Arctic Ocean.
• C. Kayan River
  The Kayan River is a major waterway in Borneo that flows through the traditional homelands of the Kayan people, shaping their transportation, livelihoods, and cultural practices.
• D. Yana River basin
  The Yana River basin is a large Arctic drainage area in northeastern Siberia, encompassing the watershed of the Yana River as it flows northward to the Laptev Sea.
• E. Lena–Amur watershed system
  The Lena–Amur watershed system is a major hydrological divide in eastern Siberia that separates the drainage basins of the Lena and Amur rivers across a series of mountain ranges and uplands.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.