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: Onon River | Statement: [Zabaykalsky Krai, hasMajorRiver, Onon River]

Target entity: Onon River
Context triple: [Zabaykalsky Krai, hasMajorRiver, Onon River]

• A. Olenyok River
  The Olenyok River is a major river in northern Siberia, Russia, flowing through remote Arctic regions before emptying into the Laptev Sea.
• B. Seim River
  The Seim River is a major tributary of the Desna River in Eastern Europe, flowing through parts of Russia and northern Ukraine.
• C. Ros River
  The Ros River is a significant waterway in central Ukraine that flows through the Kyiv and Cherkasy regions before joining the Dnieper River.
• D. Tanana River
  The Tanana River is a major tributary of the Yukon River in central Alaska, known for flowing past the city of Fairbanks and playing a key role in the region’s ecology and transportation.
• E. Sagavanirktok River
  The Sagavanirktok River is a major river on Alaska’s North Slope that flows north through the Arctic coastal plain to the Beaufort Sea.
• 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: Onon River
Triple: [Zabaykalsky Krai, hasMajorRiver, Onon River]

The Onon River is a major river in northeastern Asia that originates in Mongolia, flows through Russia’s Zabaykalsky Krai, and is considered one of the headwaters of the Amur River system.

Target entity: Onon River
Target entity description: The Onon River is a major river in northeastern Asia that originates in Mongolia, flows through Russia’s Zabaykalsky Krai, and is considered one of the headwaters of the Amur River system.

• A. Olenyok River
  The Olenyok River is a major river in northern Siberia, Russia, flowing through remote Arctic regions before emptying into the Laptev Sea.
• B. Seim River
  The Seim River is a major tributary of the Desna River in Eastern Europe, flowing through parts of Russia and northern Ukraine.
• C. Ros River
  The Ros River is a significant waterway in central Ukraine that flows through the Kyiv and Cherkasy regions before joining the Dnieper River.
• D. Tanana River
  The Tanana River is a major tributary of the Yukon River in central Alaska, known for flowing past the city of Fairbanks and playing a key role in the region’s ecology and transportation.
• E. Sagavanirktok River
  The Sagavanirktok River is a major river on Alaska’s North Slope that flows north through the Arctic coastal plain to the Beaufort Sea.
• F. None of above. chosen