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: Tsar Ivan Asen II of Bulgaria | Statement: [Battle of Klokotnitsa, combatantLeaderForBulgaria, Tsar Ivan Asen II of Bulgaria]

Target entity: Tsar Ivan Asen II of Bulgaria
Context triple: [Battle of Klokotnitsa, combatantLeaderForBulgaria, Tsar Ivan Asen II of Bulgaria]

• A. Ivan Asen IV of Bulgaria
  Ivan Asen IV of Bulgaria was a 14th-century Bulgarian prince of the Second Bulgarian Empire, known primarily as a son of Tsar Ivan Alexander who died fighting the Ottoman Turks.
• B. Michael II Asen of Bulgaria
  Michael II Asen of Bulgaria was a 13th-century tsar of the Second Bulgarian Empire from the Asen dynasty, known for his troubled reign marked by internal strife and foreign intervention.
• C. Ivan Asen II chosen
  Ivan Asen II was a prominent 13th-century Bulgarian tsar who presided over the political, economic, and cultural zenith of the Second Bulgarian Empire.
• D. Bulgarian Tsar Constantine Tikh Asen
  Bulgarian Tsar Constantine Tikh Asen was a 13th-century ruler of the Second Bulgarian Empire, known for his turbulent reign marked by internal strife and conflicts with neighboring powers.
• E. Asen I of Bulgaria
  Asen I of Bulgaria was a medieval Bulgarian tsar who, together with his brother Peter, led the successful uprising that restored the Second Bulgarian Empire in the late 12th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: combatantLeaderForBulgaria
Context triple: [Battle of Klokotnitsa, combatantLeaderForBulgaria, Tsar Ivan Asen II of Bulgaria]

• A. founderOfDynastyInBulgaria
  Indicates that a person is the founder or originator of a particular dynasty that ruled or existed in Bulgaria.
• B. belligerentLeader chosen
  Indicates that an entity serves as a leader or authority figure of a party engaged in a conflict, war, or hostile confrontation.
• C. militaryLeader
  Indicates that one entity serves as the commanding military leader of another entity, such as a state, organization, or armed force.
• D. ByzantineCommander
  Indicates a relationship where an entity holds the role or function of a commander within a Byzantine military or organizational context.
• E. combatantCommanderAustria
  Indicates that the referenced entity served as a military commander for Austria in a particular conflict or combat situation.
• F. None of above.