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: Frederick Jagiellon | Statement: [Casimir IV Jagiellon, child, Frederick Jagiellon]

Target entity: Frederick Jagiellon
Context triple: [Casimir IV Jagiellon, child, Frederick Jagiellon]

• A. Alexander Jagiellon
  Alexander Jagiellon was a late 15th- and early 16th-century ruler who served as Grand Duke of Lithuania and later King of Poland, continuing the legacy of the influential Jagiellonian dynasty in Central and Eastern Europe.
• B. Louis II Jagiellon
  Louis II Jagiellon was the early 16th-century King of Hungary and Bohemia whose death at the Battle of Mohács in 1526 marked a turning point leading to Habsburg and Ottoman dominance in Central Europe.
• C. Piotr Jagiello
  Piotr Jagiello is an actor best known for his role in the British coming-of-age film "Somers Town."
• D. Casimir IV Jagiellon
  Casimir IV Jagiellon was a 15th-century King of Poland and Grand Duke of Lithuania whose long reign marked the height of Jagiellonian power in Central and Eastern Europe.
• E. Sigismund II Augustus
  Sigismund II Augustus was the last Jagiellonian king of Poland and Grand Duke of Lithuania, known for overseeing the Union of Lublin that created the Polish–Lithuanian Commonwealth.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Frederick Jagiellon
Triple: [Casimir IV Jagiellon, child, Frederick Jagiellon]

Frederick Jagiellon was a Polish prince of the Jagiellonian dynasty who became a prominent Catholic churchman, serving as Archbishop of Gniezno and Primate of Poland in the late 15th and early 16th centuries.

Target entity: Frederick Jagiellon
Target entity description: Frederick Jagiellon was a Polish prince of the Jagiellonian dynasty who became a prominent Catholic churchman, serving as Archbishop of Gniezno and Primate of Poland in the late 15th and early 16th centuries.

• A. Alexander Jagiellon
  Alexander Jagiellon was a late 15th- and early 16th-century ruler who served as Grand Duke of Lithuania and later King of Poland, continuing the legacy of the influential Jagiellonian dynasty in Central and Eastern Europe.
• B. Louis II Jagiellon
  Louis II Jagiellon was the early 16th-century King of Hungary and Bohemia whose death at the Battle of Mohács in 1526 marked a turning point leading to Habsburg and Ottoman dominance in Central Europe.
• C. Piotr Jagiello
  Piotr Jagiello is an actor best known for his role in the British coming-of-age film "Somers Town."
• D. Casimir IV Jagiellon
  Casimir IV Jagiellon was a 15th-century King of Poland and Grand Duke of Lithuania whose long reign marked the height of Jagiellonian power in Central and Eastern Europe.
• E. Sigismund II Augustus
  Sigismund II Augustus was the last Jagiellonian king of Poland and Grand Duke of Lithuania, known for overseeing the Union of Lublin that created the Polish–Lithuanian Commonwealth.
• F. None of above. chosen