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: Biobío River | Statement: [Arauco War, hasFrontierLine, Biobío River]

Target entity: Biobío River
Context triple: [Arauco War, hasFrontierLine, Biobío River]

• A. Biobío River chosen
  The Biobío River is one of Chile's largest and most historically significant rivers, flowing from the Andes to the Pacific Ocean in the south-central part of the country.
• B. Río Rahue
  Río Rahue is a river in southern Chile that flows through the city of Osorno and forms part of the region’s important freshwater and agricultural landscape.
• C. Aysén River
  The Aysén River is a major waterway in Chilean Patagonia, known for its scenic fjords, glacial-fed waters, and role as a key access route to the remote Aysén Region.
• D. Valdivia River
  The Valdivia River is a significant waterway in southern Chile known for flowing through the city of Valdivia and forming an important part of the region’s historical trade and transportation network.
• E. Río Hurtado
  Río Hurtado is a rural Chilean municipality and valley area in the Coquimbo Region, known for its Andean landscapes, agriculture, and archaeological sites.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: hasFrontierLine
Context triple: [Arauco War, hasFrontierLine, Biobío River]

• A. frontLineBetween
  Indicates that a boundary or line of direct confrontation exists separating two opposing sides or regions.
• B. frontLineReached
  Indicates that an entity has arrived at or crossed into the designated front line or primary boundary of engagement.
• C. hasFront
  Indicates that an entity possesses or is associated with a front-facing side, surface, or portion.
• D. FrontierStatus
  Indicates the status or condition of something in relation to a boundary, edge, or frontier context (such as being at, beyond, or within that frontier).
• E. hasDeFactoLine chosen
  Indicates that there exists an unofficial or non-legally recognized boundary or demarcation line functioning in practice between the related entities.
• F. None of above.