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: Soběslav I, Duke of Bohemia | Statement: [Duchy of Bohemia, notableRuler, Soběslav I, Duke of Bohemia]

Target entity: Soběslav I, Duke of Bohemia
Context triple: [Duchy of Bohemia, notableRuler, Soběslav I, Duke of Bohemia]

• A. Bořivoj I, Duke of Bohemia
  Bořivoj I, Duke of Bohemia, was the first historically documented ruler of Bohemia and an early promoter of Christianity in the region during the late 9th century.
• B. Boleslaus I, Duke of Bohemia
  Boleslaus I, Duke of Bohemia was a 10th-century Přemyslid ruler known for consolidating Bohemian power, expanding its territory, and strengthening its independence from the Holy Roman Empire.
• C. Boleslaus II, Duke of Bohemia
  Boleslaus II, Duke of Bohemia, was a Přemyslid ruler of Bohemia in the late 10th century known for consolidating ducal power and fostering the Christianization and political development of the region.
• D. 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.
• E. Wenceslaus I of Bohemia
  Wenceslaus I of Bohemia was a 13th-century Přemyslid king known for consolidating royal power in Bohemia and resisting the Mongol incursions into Central Europe.
• 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: Soběslav I, Duke of Bohemia
Triple: [Duchy of Bohemia, notableRuler, Soběslav I, Duke of Bohemia]

Soběslav I, Duke of Bohemia, was a 12th-century Přemyslid ruler known for defending Bohemian autonomy against German imperial influence and securing victory at the Battle of Chlumec in 1126.

Target entity: Soběslav I, Duke of Bohemia
Target entity description: Soběslav I, Duke of Bohemia, was a 12th-century Přemyslid ruler known for defending Bohemian autonomy against German imperial influence and securing victory at the Battle of Chlumec in 1126.

• A. Bořivoj I, Duke of Bohemia
  Bořivoj I, Duke of Bohemia, was the first historically documented ruler of Bohemia and an early promoter of Christianity in the region during the late 9th century.
• B. Boleslaus I, Duke of Bohemia
  Boleslaus I, Duke of Bohemia was a 10th-century Přemyslid ruler known for consolidating Bohemian power, expanding its territory, and strengthening its independence from the Holy Roman Empire.
• C. Boleslaus II, Duke of Bohemia
  Boleslaus II, Duke of Bohemia, was a Přemyslid ruler of Bohemia in the late 10th century known for consolidating ducal power and fostering the Christianization and political development of the region.
• D. 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.
• E. Wenceslaus I of Bohemia
  Wenceslaus I of Bohemia was a 13th-century Přemyslid king known for consolidating royal power in Bohemia and resisting the Mongol incursions into Central Europe.
• F. None of above. chosen