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 Francia | Statement: [Treaty of Mersen, definesBorderBetween, East Francia]

Target entity: East Francia
Context triple: [Treaty of Mersen, definesBorderBetween, East Francia]

• A. East Francia chosen
  East Francia was the eastern Frankish kingdom that emerged from the division of the Carolingian Empire and evolved into the core of the medieval German realm.
• B. Austrasia
  Austrasia was the northeastern region of the early medieval Frankish realm, encompassing parts of present-day France, Germany, Belgium, and the Netherlands and serving as a power base for the Merovingian and later Carolingian dynasties.
• C. West Francia
  West Francia was the western part of the Carolingian Empire that evolved into the medieval Kingdom of France.
• D. Kingdom of Lotharingia
  The Kingdom of Lotharingia was a short-lived medieval realm in the heart of Europe, stretching roughly from the North Sea to the Alps, that emerged from the partition of the Carolingian Empire and later became a contested borderland between East and West Francia.
• E. Frisia
  Frisia is a coastal cultural and historical region along the southeastern North Sea, traditionally inhabited by the Frisian people and spanning parts of the modern Netherlands and Germany.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: definesBorderBetween
Context triple: [Treaty of Mersen, definesBorderBetween, East Francia]

• A. boundaryBetween chosen
  Indicates that something serves as a dividing line or limit separating two distinct regions, areas, or entities.
• B. onBorderBetween
  Indicates that an entity is located along or directly adjacent to the dividing line shared by two distinct regions or areas.
• C. guaranteedBorderBetween
  Indicates a formally assured and recognized boundary relationship that definitively separates two regions or entities.
• D. adjustedBorderBetween
  Indicates that the boundary separating two entities has been modified or realigned from its previous position.
• E. borderedBy
  Indicates that one entity shares a common boundary or edge with another entity.
• F. None of above.