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: Andrei of Polotsk | Statement: [Algirdas, child, Andrei of Polotsk]

Target entity: Andrei of Polotsk
Context triple: [Algirdas, child, Andrei 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. 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."
• 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. Mikhail Yaroslavich Khorobrit
  Mikhail Yaroslavich Khorobrit was a 13th-century Russian prince of Vladimir-Suzdal known for his brief rule and involvement in the turbulent dynastic struggles of medieval Rus'.
• E. Vsevolod of Yuriev-Polsky
  Vsevolod of Yuriev-Polsky was a 13th-century Russian prince of the Vladimir-Suzdal principality, known for ruling the town of Yuriev-Polsky during the era of fragmented Rus.
• 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: Andrei of Polotsk
Triple: [Algirdas, child, Andrei of Polotsk]

Andrei of Polotsk was a medieval prince of the Principality of Polotsk and a son of Grand Duke Algirdas of Lithuania, known for his role in the dynastic politics of the Grand Duchy.

Target entity: Andrei of Polotsk
Target entity description: Andrei of Polotsk was a medieval prince of the Principality of Polotsk and a son of Grand Duke Algirdas of Lithuania, known for his role in the dynastic politics of the Grand Duchy.

• 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. 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."
• 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. Mikhail Yaroslavich Khorobrit
  Mikhail Yaroslavich Khorobrit was a 13th-century Russian prince of Vladimir-Suzdal known for his brief rule and involvement in the turbulent dynastic struggles of medieval Rus'.
• E. Vsevolod of Yuriev-Polsky
  Vsevolod of Yuriev-Polsky was a 13th-century Russian prince of the Vladimir-Suzdal principality, known for ruling the town of Yuriev-Polsky during the era of fragmented Rus.
• F. None of above. chosen