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: Berthold IV, Duke of Merania | Statement: [Gertrude of Merania, father, Berthold IV, Duke of Merania]

Target entity: Berthold IV, Duke of Merania
Context triple: [Gertrude of Merania, father, Berthold IV, Duke of Merania]

• A. Berthold IV, Duke of Merania chosen
  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.
• B. Rudolf IV, Duke of Austria
  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.
• C. Berthold II, Duke of Swabia
  Berthold II, Duke of Swabia, was an 11th-century German nobleman and prominent supporter of the Gregorian Reform who played a key role in the power struggles of the Holy Roman Empire during the Investiture Controversy.
• D. Duke Meinhard II of Tyrol
  Duke Meinhard II of Tyrol was a 13th-century Tyrolean ruler of the Meinhardiner dynasty known for consolidating regional power and introducing significant monetary reforms.
• E. Berthold IV of Zähringen
  Berthold IV of Zähringen was a 12th-century German nobleman who served as Duke of Zähringen and played a significant role in the politics of the Holy Roman Empire, particularly in the regions of Swabia and Burgundy.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.