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: Amur River system | Statement: [Onon River, riverSystem, Amur River system]

Target entity: Amur River system
Context triple: [Onon River, riverSystem, Amur River system]

• A. 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.
• B. Amur River chosen
  The Amur River is a major waterway in northeastern Asia that forms much of the border between Russia and China and supports rich ecosystems and regional trade.
• C. Angara–Yenisei river system
  The Angara–Yenisei river system is a major Siberian waterway formed by the Angara and Yenisei rivers, draining a vast area of central Asia into the Arctic Ocean.
• D. Ussuri River
  The Ussuri River is a major river in Northeast Asia that forms part of the border between Russia and China and is known for its rich biodiversity and historical geopolitical significance.
• E. Upper Amur Nanai
  Upper Amur Nanai is a regional dialect of the Tungusic Nanai language spoken by Nanai communities along the upper reaches of the Amur River in the Russian Far East.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.