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: Ohio River valley | Statement: [Ohio River bluffs, partOf, Ohio River valley]

Target entity: Ohio River valley
Context triple: [Ohio River bluffs, partOf, Ohio River valley]

• A. Ohio River Valley (claimed)
  The Ohio River Valley (claimed) refers to the contested interior region of North America that became a focal point of imperial rivalry and westward expansion during the colonial era.
• B. Ohio River basin
  The Ohio River basin is a major watershed in the eastern United States that collects runoff from numerous tributaries across multiple states before ultimately feeding into the Mississippi River system.
• C. Mississippi River valley
  The Mississippi River valley is a vast, fertile lowland region in the central United States shaped by the Mississippi River, historically crucial for agriculture, trade, and settlement.
• D. Ohio Valley region chosen
  The Ohio Valley region is a historically significant area along the Ohio River in the eastern United States, known as an early center of frontier settlement, religious movements, and economic development.
• E. Muskingum River region
  The Muskingum River region is an area in present-day eastern Ohio historically significant as a homeland and strategic center for several Native American nations during the 18th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.