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: [Proto-Austroasiatic, spokenInPrehistoryOf, Mainland Southeast Asia]

Target entity: Mainland Southeast Asia
Context triple: [Proto-Austroasiatic, spokenInPrehistoryOf, 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. 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.
• D. 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.
• E. Malay Peninsula
  The Malay Peninsula is a long, narrow landmass in Southeast Asia that separates the Andaman Sea from the South China Sea and encompasses parts of modern-day Malaysia, Thailand, and Singapore.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: spokenInPrehistoryOf
Context triple: [Proto-Austroasiatic, spokenInPrehistoryOf, Mainland Southeast Asia]

• A. historicallySpoke
  Indicates that an entity used a particular language as a spoken language during some period in the past.
• B. historicallySpokenIn chosen
  Indicates that a language was used for spoken communication in a particular place or region during a past historical period.
• C. possiblySpokenAt
  Indicates that an utterance or speech event may have occurred at a particular time or location, but this association is uncertain or not definitively confirmed.
• D. spokenInPeriod
  Indicates that an entity (such as a language, dialect, or way of speaking) was used or spoken during a specific time period.
• E. spokenBefore
  Indicates that one entity has spoken or produced speech earlier in time than another entity.
• F. None of above.