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: Rudolf IV, Duke of Austria | Statement: [Elizabeth of Bohemia, spouse, Rudolf IV, Duke of Austria]

Target entity: Rudolf IV, Duke of Austria
Context triple: [Elizabeth of Bohemia, spouse, Rudolf IV, Duke of Austria]

• A. Rudolf IV, Duke of Austria chosen
  Rudolf IV, Duke of Austria, was a 14th-century Habsburg ruler known for his ambitious state-building policies and cultural patronage, including major architectural projects in Vienna and efforts to elevate the status of his dynasty.
• B. Rudolf III of Austria
  Rudolf III of Austria was a medieval Habsburg duke who ruled parts of Austria in the early 14th century as a member of the influential House of Habsburg.
• C. Berthold IV, Duke of Merania
  Berthold IV, Duke of Merania, was a 12th-century nobleman of the House of Andechs who ruled territories along the Adriatic coast and played a significant role in the politics of the Holy Roman Empire.
• D. Rudolf I, Duke of Bavaria
  Rudolf I, Duke of Bavaria was a 13th-century Wittelsbach nobleman who ruled parts of Bavaria and the Upper Palatinate, helping to consolidate his dynasty’s power in southern Germany.
• E. Leopold VI, Duke of Austria
  Leopold VI, Duke of Austria was a prominent early 13th-century Babenberg ruler known for expanding and consolidating Austrian and Styrian territories and fostering cultural and urban development, particularly in Vienna.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.