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: East African Rift volcanic system | Statement: [Mount Elgon, partOf, East African Rift volcanic system]

Target entity: East African Rift volcanic system
Context triple: [Mount Elgon, partOf, East African Rift volcanic system]

• A. East African Rift chosen
  The East African Rift is a major tectonic rift system in eastern Africa where the African Plate is splitting into separate plates, creating a chain of rift valleys, volcanoes, and lakes.
• B. Afro-Arabian Rift System
  The Afro-Arabian Rift System is a major tectonic rift complex separating Africa from the Arabian Peninsula, characterized by active faulting, volcanism, and the formation of features such as the Red Sea and surrounding gulfs.
• C. Northeast Rift Zone
  The Northeast Rift Zone is a major volcanic fissure system on Mauna Loa’s flank from which many of the volcano’s historic lava flows have erupted.
• D. Great Rift Valley system (wider geological context)
  The Great Rift Valley system is a vast, tectonically active geological trench stretching from the Middle East through eastern Africa, characterized by rift valleys, highland plateaus, volcanic activity, and significant biodiversity.
• E. Cameroon Volcanic Line
  The Cameroon Volcanic Line is a major chain of volcanoes and volcanic formations stretching from the Gulf of Guinea islands into mainland Central Africa, known for its active and geologically complex features.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.