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: Southern Ocean | Statement: [RV Nathaniel B. Palmer, primaryAreaOfOperation, Southern Ocean]

Target entity: Southern Ocean
Context triple: [RV Nathaniel B. Palmer, primaryAreaOfOperation, Southern Ocean]

• A. Southern Ocean chosen
  The Southern Ocean is the remote, icy ocean encircling Antarctica, known for its powerful circumpolar currents, rich marine ecosystems, and crucial role in regulating Earth’s climate.
• B. Indian Ocean–Southern Ocean marine region
  The Indian Ocean–Southern Ocean marine region is a vast biogeographic area encompassing the transitional waters and ecosystems where the Indian and Southern Oceans meet, including features such as the Great Australian Bight.
• C. Pacific sector of Southern Ocean
  The Pacific sector of the Southern Ocean is the portion of the ocean surrounding Antarctica that lies south of the Pacific Ocean, encompassing areas such as the Ross Sea.
• D. South Pacific Ocean
  The South Pacific Ocean is the vast southern portion of the Pacific, encompassing numerous island nations and territories and known for its remote archipelagos, rich marine biodiversity, and significant climatic influence.
• E. Indian Ocean
  The Indian Ocean is the world’s third-largest ocean, lying between Africa, Asia, Australia, and the Southern Ocean, and serving as a major route for global trade and maritime activity.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.