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: Rokan River basin | Statement: [Rokan River, locatedInRiverBasin, Rokan River basin]

Target entity: Rokan River basin
Context triple: [Rokan River, locatedInRiverBasin, Rokan River basin]

• A. Rokan River
  The Rokan River is a major river in Sumatra, Indonesia, flowing through Riau Province and playing an important role in regional transportation, ecology, and local livelihoods.
• B. Asahan River
  The Asahan River is a major river in northern Sumatra, Indonesia, flowing from Lake Toba to the Strait of Malacca and supporting regional hydroelectric power and irrigation.
• C. Đà River basin
  The Đà River basin is a major river system in northwestern Vietnam that drains mountainous regions and supports hydropower, agriculture, and settlements such as those in Hòa Bình Province.
• D. Siak River
  The Siak River is a major waterway in Riau Province on the island of Sumatra, Indonesia, historically important for trade and transportation and flowing through the city of Pekanbaru before emptying into the Strait of Malacca.
• E. Sumbar River basin
  The Sumbar River basin is a drainage area in the Kopet Dag region of Central Asia, encompassing the river’s catchment and surrounding mountainous landscapes.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Rokan River basin
Target entity description: The Rokan River basin is a drainage area in Riau Province, Sumatra, Indonesia, encompassing the watershed and surrounding landscapes that feed and are shaped by the Rokan River.

• A. Rokan River chosen
  The Rokan River is a major river in Sumatra, Indonesia, flowing through Riau Province and playing an important role in regional transportation, ecology, and local livelihoods.
• B. Asahan River
  The Asahan River is a major river in northern Sumatra, Indonesia, flowing from Lake Toba to the Strait of Malacca and supporting regional hydroelectric power and irrigation.
• C. Đà River basin
  The Đà River basin is a major river system in northwestern Vietnam that drains mountainous regions and supports hydropower, agriculture, and settlements such as those in Hòa Bình Province.
• D. Siak River
  The Siak River is a major waterway in Riau Province on the island of Sumatra, Indonesia, historically important for trade and transportation and flowing through the city of Pekanbaru before emptying into the Strait of Malacca.
• E. Sumbar River basin
  The Sumbar River basin is a drainage area in the Kopet Dag region of Central Asia, encompassing the river’s catchment and surrounding mountainous landscapes.
• F. None of above.