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: West Antarctic Rift System | Statement: [Marie Byrd Land volcanic province, partOf, West Antarctic Rift System]

Target entity: West Antarctic Rift System
Context triple: [Marie Byrd Land volcanic province, partOf, West Antarctic Rift System]

• A. West Antarctic Rift System chosen
  The West Antarctic Rift System is a major tectonic rift zone underlying much of West Antarctica, characterized by crustal extension, volcanism, and significant influence on the region’s topography and ice sheet dynamics.
• B. American-Antarctic Ridge
  The American-Antarctic Ridge is a mid-ocean ridge in the South Atlantic–Southern Ocean region where the American and Antarctic tectonic plates diverge, forming part of the global system of seafloor spreading centers.
• C. Adelaide Rift Complex
  The Adelaide Rift Complex is a major Neoproterozoic sedimentary basin in South Australia whose rock record preserves key evidence for ancient global-scale glaciations and early Earth tectonic evolution.
• D. Atlantic–Antarctic Ridge system
  The Atlantic–Antarctic Ridge system is a major mid-ocean ridge complex in the South Atlantic and Southern Ocean where tectonic plates diverge and new oceanic crust is formed.
• E. Pacific-Antarctic Ridge
  The Pacific-Antarctic Ridge is a major mid-ocean spreading center in the Southern Ocean where the Pacific and Antarctic tectonic plates diverge, creating new oceanic crust.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.