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: Duke of Styria | Statement: [Béla IV of Hungary, positionHeld, Duke of Styria]

Target entity: Duke of Styria
Context triple: [Béla IV of Hungary, positionHeld, Duke of Styria]

• A. Duke of Styria chosen
  The Duke of Styria was a medieval noble title governing the duchy of Styria in Central Europe, often held by prominent rulers within the Holy Roman Empire.
• B. Duke of Austria
  The Duke of Austria was the hereditary noble title held by the medieval and early modern rulers of the Austrian lands within the Holy Roman Empire, preceding the later title of Archduke.
• C. Erzherzog von Österreich
  Erzherzog von Österreich is the German title historically used for members of the Habsburg dynasty who held the rank of Archduke of Austria.
• D. Leopold V, Duke of Austria
  Leopold V, Duke of Austria, was a 12th-century Babenberg ruler best known for his role in the Third Crusade and for capturing King Richard I of England on his return from the Holy Land.
• E. Albert IV, Count of Habsburg
  Albert IV, Count of Habsburg was a 13th-century nobleman of the Habsburg dynasty whose lineage helped lay the foundations for the family's later rise to prominence in European politics.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.