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: Austro-Tai hypothesis | Statement: [Tai–Kadai languages, languageBranchOf, Austro-Tai hypothesis]

Target entity: Austro-Tai hypothesis
Context triple: [Tai–Kadai languages, languageBranchOf, Austro-Tai hypothesis]

• A. Proto-Austroasiatic
  Proto-Austroasiatic is the hypothesized common ancestor language from which all modern Austroasiatic languages, such as Khmer, Vietnamese, and Mon, are believed to have descended.
• B. Altaic languages (proposed)
  Altaic languages (proposed) is a controversial hypothetical language family that groups together Turkic, Mongolic, Tungusic, and sometimes Koreanic and Japonic languages, primarily spoken across northern and central Asia.
• C. Kurgan hypothesis
  The Kurgan hypothesis is a leading theory that locates the Proto-Indo-European homeland in the Pontic–Caspian steppe and explains the spread of Indo-European languages through the expansion of early steppe pastoralist cultures.
• D. Austronesian alignment
  Austronesian alignment is a morphosyntactic alignment system, common in many Philippine and related languages, where verbal voice and focus mark different core arguments in ways that do not fit neatly into standard nominative–accusative or ergative–absolutive patterns.
• E. Transeurasian languages
  Transeurasian languages are a proposed macro-family of languages stretching from Eastern Europe across Siberia to East Asia, hypothesized to include Turkic, Mongolic, Tungusic, Koreanic, and Japonic.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Austro-Tai hypothesis
Triple: [Tai–Kadai languages, languageBranchOf, Austro-Tai hypothesis]

The Austro-Tai hypothesis is a proposed macro-family in historical linguistics that suggests a genetic relationship between the Tai–Kadai languages and the Austronesian language family.

Target entity: Austro-Tai hypothesis
Target entity description: The Austro-Tai hypothesis is a proposed macro-family in historical linguistics that suggests a genetic relationship between the Tai–Kadai languages and the Austronesian language family.

• A. Proto-Austroasiatic
  Proto-Austroasiatic is the hypothesized common ancestor language from which all modern Austroasiatic languages, such as Khmer, Vietnamese, and Mon, are believed to have descended.
• B. Altaic languages (proposed)
  Altaic languages (proposed) is a controversial hypothetical language family that groups together Turkic, Mongolic, Tungusic, and sometimes Koreanic and Japonic languages, primarily spoken across northern and central Asia.
• C. Kurgan hypothesis
  The Kurgan hypothesis is a leading theory that locates the Proto-Indo-European homeland in the Pontic–Caspian steppe and explains the spread of Indo-European languages through the expansion of early steppe pastoralist cultures.
• D. Austronesian alignment
  Austronesian alignment is a morphosyntactic alignment system, common in many Philippine and related languages, where verbal voice and focus mark different core arguments in ways that do not fit neatly into standard nominative–accusative or ergative–absolutive patterns.
• E. Transeurasian languages
  Transeurasian languages are a proposed macro-family of languages stretching from Eastern Europe across Siberia to East Asia, hypothesized to include Turkic, Mongolic, Tungusic, Koreanic, and Japonic.
• F. None of above. chosen