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 (regionally associated) | Statement: [Ellsworth Mountains, isPartOf, West Antarctic Rift System (regionally associated)]

Target entity: West Antarctic Rift System (regionally associated)
Context triple: [Ellsworth Mountains, isPartOf, West Antarctic Rift System (regionally associated)]

• 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. Amery Ice Shelf region
  The Amery Ice Shelf region is a vast coastal area of East Antarctica dominated by one of the continent’s largest ice shelves, where thick glacial ice flows from the interior into the Southern Ocean.
• 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. Shackleton Glacier region
  The Shackleton Glacier region is an area of Antarctica centered around the Shackleton Glacier, a major outlet glacier draining the polar plateau through the Transantarctic Mountains toward the Ross Ice Shelf.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.