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: Spytihněv II, Duke of Bohemia | Statement: [Duke of Bohemia, titleHolder, Spytihněv II, Duke of Bohemia]

Target entity: Spytihněv II, Duke of Bohemia
Context triple: [Duke of Bohemia, titleHolder, Spytihněv II, Duke of Bohemia]

• A. Spytihněv I, Duke of Bohemia
  Spytihněv I, Duke of Bohemia was a 9th–10th century Přemyslid ruler known for consolidating Bohemian power and strengthening ties with the East Frankish (later German) realm.
• B. Vratislaus II of Bohemia
  Vratislaus II of Bohemia was an 11th-century Přemyslid ruler who became the first King of Bohemia, significantly strengthening the duchy's political status within the Holy Roman Empire.
• C. Boček IV of Poděbrady
  Boček IV of Poděbrady was a 15th-century Bohemian nobleman from the influential House of Poděbrady and a son of the Hussite king George of Poděbrady.
• D. Vojtěch of Prague
  Vojtěch of Prague, better known as Saint Adalbert of Prague, was a 10th-century Bohemian bishop and Christian missionary whose martyrdom made him one of the most venerated saints in Central Europe.
• E. Oldřich of Bohemia
  Oldřich of Bohemia was an early 11th-century Duke of Bohemia from the Přemyslid dynasty, known for restoring Přemyslid rule and strengthening the duchy after a period of instability.
• 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: Spytihněv II, Duke of Bohemia
Triple: [Duke of Bohemia, titleHolder, Spytihněv II, Duke of Bohemia]

Spytihněv II was an 11th-century Přemyslid ruler of Bohemia known for consolidating ducal authority and pursuing policies that strengthened the autonomy of the Bohemian state within the Holy Roman Empire.

Target entity: Spytihněv II, Duke of Bohemia
Target entity description: Spytihněv II was an 11th-century Přemyslid ruler of Bohemia known for consolidating ducal authority and pursuing policies that strengthened the autonomy of the Bohemian state within the Holy Roman Empire.

• A. Spytihněv I, Duke of Bohemia
  Spytihněv I, Duke of Bohemia was a 9th–10th century Přemyslid ruler known for consolidating Bohemian power and strengthening ties with the East Frankish (later German) realm.
• B. Vratislaus II of Bohemia
  Vratislaus II of Bohemia was an 11th-century Přemyslid ruler who became the first King of Bohemia, significantly strengthening the duchy's political status within the Holy Roman Empire.
• C. Boček IV of Poděbrady
  Boček IV of Poděbrady was a 15th-century Bohemian nobleman from the influential House of Poděbrady and a son of the Hussite king George of Poděbrady.
• D. Vojtěch of Prague
  Vojtěch of Prague, better known as Saint Adalbert of Prague, was a 10th-century Bohemian bishop and Christian missionary whose martyrdom made him one of the most venerated saints in Central Europe.
• E. Oldřich of Bohemia
  Oldřich of Bohemia was an early 11th-century Duke of Bohemia from the Přemyslid dynasty, known for restoring Přemyslid rule and strengthening the duchy after a period of instability.
• F. None of above. chosen