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: Lena–Amur watershed system | Statement: [Yablonovy Range, partOf, Lena–Amur watershed system]

Target entity: Lena–Amur watershed system
Context triple: [Yablonovy Range, partOf, Lena–Amur watershed system]

• A. Kolyma River basin
  The Kolyma River basin is a vast, sparsely populated watershed in northeastern Siberia that drains into the Arctic Ocean and is known for its extreme cold, permafrost landscapes, and historical association with Soviet-era labor camps.
• B. Taimyr River basin
  The Taimyr River basin is a remote Arctic watershed in northern Siberia that drains the Taimyr Peninsula into the Arctic Ocean and supports tundra ecosystems and permafrost landscapes.
• C. Amur River
  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.
• D. 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.
• E. Yenisei River valley
  The Yenisei River valley is a vast Siberian river corridor characterized by rugged taiga landscapes, hydroelectric reservoirs, and industrial towns such as Divnogorsk along one of the world’s longest river systems.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Lena–Amur watershed system
Triple: [Yablonovy Range, partOf, 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.

Target entity: Lena–Amur watershed system
Target entity description: 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.

• A. Kolyma River basin
  The Kolyma River basin is a vast, sparsely populated watershed in northeastern Siberia that drains into the Arctic Ocean and is known for its extreme cold, permafrost landscapes, and historical association with Soviet-era labor camps.
• B. Taimyr River basin
  The Taimyr River basin is a remote Arctic watershed in northern Siberia that drains the Taimyr Peninsula into the Arctic Ocean and supports tundra ecosystems and permafrost landscapes.
• C. Amur River
  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.
• D. 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.
• E. Yenisei River valley
  The Yenisei River valley is a vast Siberian river corridor characterized by rugged taiga landscapes, hydroelectric reservoirs, and industrial towns such as Divnogorsk along one of the world’s longest river systems.
• F. None of above. chosen