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: Cymburgis of Masovia | Statement: [Frederick III, Holy Roman Emperor, mother, Cymburgis of Masovia]

Target entity: Cymburgis of Masovia
Context triple: [Frederick III, Holy Roman Emperor, mother, Cymburgis of Masovia]

• A. Grzymisława of Łuck
  Grzymisława of Łuck was a 13th-century Ruthenian noblewoman who became a Polish duchess and the mother of Bolesław V the Chaste, playing a role in the dynastic politics of medieval Poland.
• B. Jadwiga of Kalisz
  Jadwiga of Kalisz was a 13th–14th century Polish queen consort of Władysław I the Elbow-high and the mother of King Casimir III the Great, playing a key role in the Piast dynasty’s royal lineage.
• C. Beatrix of Świdnica
  Beatrix of Świdnica was a Silesian Piast princess who became Holy Roman Empress as the wife of Emperor Louis IV.
• D. Elizabeth Richeza of Poland
  Elizabeth Richeza of Poland was a Polish princess of the Piast dynasty who became Queen consort of Bohemia and later of Poland through her royal marriages.
• E. Opole Piasts
  The Opole Piasts were a regional branch of Poland’s Piast dynasty that ruled the Duchy of Opole and surrounding Silesian territories during the Middle Ages.
• 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: Cymburgis of Masovia
Triple: [Frederick III, Holy Roman Emperor, mother, Cymburgis of Masovia]

Cymburgis of Masovia was a Polish Piast princess whose marriage into the Habsburg dynasty made her an important ancestress of later Holy Roman Emperors, including Frederick III.

Target entity: Cymburgis of Masovia
Target entity description: Cymburgis of Masovia was a Polish Piast princess whose marriage into the Habsburg dynasty made her an important ancestress of later Holy Roman Emperors, including Frederick III.

• A. Grzymisława of Łuck
  Grzymisława of Łuck was a 13th-century Ruthenian noblewoman who became a Polish duchess and the mother of Bolesław V the Chaste, playing a role in the dynastic politics of medieval Poland.
• B. Jadwiga of Kalisz
  Jadwiga of Kalisz was a 13th–14th century Polish queen consort of Władysław I the Elbow-high and the mother of King Casimir III the Great, playing a key role in the Piast dynasty’s royal lineage.
• C. Beatrix of Świdnica
  Beatrix of Świdnica was a Silesian Piast princess who became Holy Roman Empress as the wife of Emperor Louis IV.
• D. Elizabeth Richeza of Poland
  Elizabeth Richeza of Poland was a Polish princess of the Piast dynasty who became Queen consort of Bohemia and later of Poland through her royal marriages.
• E. Opole Piasts
  The Opole Piasts were a regional branch of Poland’s Piast dynasty that ruled the Duchy of Opole and surrounding Silesian territories during the Middle Ages.
• F. None of above. chosen