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: Vseslav of Polotsk | Statement: [Principality of Polotsk, notablePerson, Vseslav of Polotsk]

Target entity: Vseslav of Polotsk
Context triple: [Principality of Polotsk, notablePerson, Vseslav of Polotsk]

• A. Rogvolod of Polotsk
  Rogvolod of Polotsk was a 10th-century Varangian prince who ruled the important East Slavic city of Polotsk and is known from early chronicles for his role in the power struggles preceding the Christianization of Kievan Rus'.
• B. Sviatoslav Olgovich
  Sviatoslav Olgovich was a 12th-century prince from the Olgovichi branch of the Rurikid dynasty who ruled in parts of Kievan Rus' and took part in its dynastic conflicts.
• C. Bryachislav of Polotsk
  Bryachislav of Polotsk was an 11th-century prince of the East Slavic Principality of Polotsk, known for his struggles against Kievan Rus' and efforts to assert his realm’s independence.
• D. Sviatoslavichi of Chernigov
  The Sviatoslavichi of Chernigov were a medieval Rurikid princely lineage that ruled the Principality of Chernigov and played a major role in the politics of Kievan Rus'.
• E. Oleg of Novgorod
  Oleg of Novgorod was a Varangian prince and regent who expanded and consolidated the early Kievan Rus', traditionally credited with moving the capital to Kiev and laying the foundations of the medieval Rus' state.
• 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: Vseslav of Polotsk
Triple: [Principality of Polotsk, notablePerson, Vseslav of Polotsk]

Vseslav of Polotsk was an 11th-century prince of Polotsk and briefly Grand Prince of Kiev, remembered both as a powerful regional ruler and as a semi-legendary, sorcerer-like figure in East Slavic folklore and the epic "The Tale of Igor's Campaign."

Target entity: Vseslav of Polotsk
Target entity description: Vseslav of Polotsk was an 11th-century prince of Polotsk and briefly Grand Prince of Kiev, remembered both as a powerful regional ruler and as a semi-legendary, sorcerer-like figure in East Slavic folklore and the epic "The Tale of Igor's Campaign."

• A. Rogvolod of Polotsk
  Rogvolod of Polotsk was a 10th-century Varangian prince who ruled the important East Slavic city of Polotsk and is known from early chronicles for his role in the power struggles preceding the Christianization of Kievan Rus'.
• B. Sviatoslav Olgovich
  Sviatoslav Olgovich was a 12th-century prince from the Olgovichi branch of the Rurikid dynasty who ruled in parts of Kievan Rus' and took part in its dynastic conflicts.
• C. Bryachislav of Polotsk
  Bryachislav of Polotsk was an 11th-century prince of the East Slavic Principality of Polotsk, known for his struggles against Kievan Rus' and efforts to assert his realm’s independence.
• D. Sviatoslavichi of Chernigov
  The Sviatoslavichi of Chernigov were a medieval Rurikid princely lineage that ruled the Principality of Chernigov and played a major role in the politics of Kievan Rus'.
• E. Oleg of Novgorod
  Oleg of Novgorod was a Varangian prince and regent who expanded and consolidated the early Kievan Rus', traditionally credited with moving the capital to Kiev and laying the foundations of the medieval Rus' state.
• F. None of above. chosen