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: [Wisconsin glaciation, southernIceMarginApproximate, Ohio River valley]

Target entity: Ohio River valley
Context triple: [Wisconsin glaciation, southernIceMarginApproximate, Ohio River valley]

• A. 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.
• B. 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.
• C. 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.
• D. 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.
• E. Rock River valley
  Rock River valley is a historically significant river valley region in the Upper Midwest of the United States, known as a traditional homeland and cultural landscape of the Ho-Chunk people.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: southernIceMarginApproximate
Context triple: [Wisconsin glaciation, southernIceMarginApproximate, Ohio River valley]

• A. southernBoundaryReference chosen
  Indicates that one entity is used as the reference or defining limit for the southern boundary of another entity.
• B. isSouthernmostPartOf
  Indicates that one entity is the geographically furthest south portion or section of another entity.
• C. formsNorthernExtentOf
  Indicates that one entity constitutes or defines the northernmost boundary or limit of another entity.
• D. seaIceMinimumExtent
  Indicates the smallest recorded spatial coverage of sea ice over a specified period or region.
• E. northTerminusType
  Indicates the type or nature of the northern endpoint or terminus of a route, line, or similar linear feature.
• F. None of above.