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: Mainland Southeast Asia | Statement: [Sip Song Chau Tai, historicalRegion, Mainland Southeast Asia]

Target entity: Mainland Southeast Asia
Context triple: [Sip Song Chau Tai, historicalRegion, Mainland Southeast Asia]

• A. Southeast Asia
  Southeast Asia is a geographically and culturally diverse region of Asia comprising countries such as Thailand, Vietnam, Indonesia, and Malaysia, situated between the Indian and Pacific Oceans.
• B. Indochinese Peninsula chosen
  The Indochinese Peninsula is a large mainland region of Southeast Asia encompassing countries such as Vietnam, Thailand, Cambodia, Laos, Myanmar, and parts of Malaysia, known for its diverse cultures, histories, and tropical landscapes.
• C. South and Southeast Asia
  South and Southeast Asia is a geographically and culturally diverse region spanning the Indian subcontinent and the area east of it through the Malay Archipelago, known for its tropical climates, rich biodiversity, and dense human populations.
• D. India–Southeast Asia
  India–Southeast Asia refers to the historical maritime and trade corridor linking the Indian subcontinent with the countries of Southeast Asia across the Bay of Bengal and surrounding seas.
• E. Greater Mekong Subregion
  The Greater Mekong Subregion is a transnational area in Southeast Asia encompassing the Mekong River basin, known for its economic cooperation program among neighboring countries to promote regional development and integration.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.