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 basin | Statement: [Daurian Steppe, borderedBy, Onon River basin]

Target entity: Onon River basin
Context triple: [Daurian Steppe, borderedBy, Onon River basin]

• A. Prien River basin
  The Prien River basin is the drainage area surrounding the Prien River in Bavaria, Germany, encompassing the town of Prien am Chiemsee and its surrounding landscapes.
• B. 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.
• C. Ob River basin
  The Ob River basin is a vast drainage area in western Siberia that collects waters from numerous rivers before they flow northward into the Arctic Ocean.
• D. Lempa River basin
  The Lempa River basin is a major Central American watershed, primarily in El Salvador, that drains a large region into the Pacific Ocean and supports significant agriculture, hydropower, and urban populations.
• E. Homathko River basin
  The Homathko River basin is a remote watershed in the Coast Mountains of British Columbia that channels glacial meltwater and mountain runoff from high icefields and peaks to the Pacific Ocean via Bute Inlet.
• 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 basin
Triple: [Daurian Steppe, borderedBy, Onon River basin]

The Onon River basin is a river drainage area in northeastern Asia that forms part of the headwaters of the Amur River system and supports diverse steppe and forest ecosystems.

Target entity: Onon River basin
Target entity description: The Onon River basin is a river drainage area in northeastern Asia that forms part of the headwaters of the Amur River system and supports diverse steppe and forest ecosystems.

• A. Prien River basin
  The Prien River basin is the drainage area surrounding the Prien River in Bavaria, Germany, encompassing the town of Prien am Chiemsee and its surrounding landscapes.
• B. 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.
• C. Ob River basin
  The Ob River basin is a vast drainage area in western Siberia that collects waters from numerous rivers before they flow northward into the Arctic Ocean.
• D. Lempa River basin
  The Lempa River basin is a major Central American watershed, primarily in El Salvador, that drains a large region into the Pacific Ocean and supports significant agriculture, hydropower, and urban populations.
• E. Homathko River basin
  The Homathko River basin is a remote watershed in the Coast Mountains of British Columbia that channels glacial meltwater and mountain runoff from high icefields and peaks to the Pacific Ocean via Bute Inlet.
• F. None of above. chosen