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: Boris Vasilyevich of Volotsk | Statement: [Vasili II of Moscow, child, Boris Vasilyevich of Volotsk]

Target entity: Boris Vasilyevich of Volotsk
Context triple: [Vasili II of Moscow, child, Boris Vasilyevich of Volotsk]

• A. Yury Ivanovich of Dmitrov
  Yury Ivanovich of Dmitrov was a Russian prince of the late 15th–early 16th century, known as a younger son of Grand Prince Ivan III and a regional ruler within the centralized Muscovite state.
• B. Yuri Vasilyevich of Dmitrov
  Yuri Vasilyevich of Dmitrov was a 15th-century Russian prince of the ruling Moscow dynasty, known primarily as a younger son of Grand Prince Vasili II and a regional ruler within the Grand Duchy of Moscow.
• C. Yuri Dmitrievich of Zvenigorod
  Yuri Dmitrievich of Zvenigorod was a Russian prince of the late 14th and early 15th centuries, known as a son of Grand Prince Dmitry Donskoy and a key figure in the dynastic struggles of the Grand Duchy of Moscow.
• D. Yuri Bogolyubsky
  Yuri Bogolyubsky was a Rus' prince who became the second husband of Queen Tamar of Georgia and briefly co-ruled before being deposed and exiled.
• E. Mstislav the Bold
  Mstislav the Bold was a 13th-century Kievan Rus' prince and military leader known for his resistance against the Mongol invasion, notably during the early clashes that culminated in the Battle of the Kalka River.
• 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: Boris Vasilyevich of Volotsk
Triple: [Vasili II of Moscow, child, Boris Vasilyevich of Volotsk]

Boris Vasilyevich of Volotsk was a 15th-century Russian prince of the Rurikid dynasty who ruled the appanage principality of Volotsk in the Grand Duchy of Moscow.

Target entity: Boris Vasilyevich of Volotsk
Target entity description: Boris Vasilyevich of Volotsk was a 15th-century Russian prince of the Rurikid dynasty who ruled the appanage principality of Volotsk in the Grand Duchy of Moscow.

• A. Yury Ivanovich of Dmitrov
  Yury Ivanovich of Dmitrov was a Russian prince of the late 15th–early 16th century, known as a younger son of Grand Prince Ivan III and a regional ruler within the centralized Muscovite state.
• B. Yuri Vasilyevich of Dmitrov
  Yuri Vasilyevich of Dmitrov was a 15th-century Russian prince of the ruling Moscow dynasty, known primarily as a younger son of Grand Prince Vasili II and a regional ruler within the Grand Duchy of Moscow.
• C. Yuri Dmitrievich of Zvenigorod
  Yuri Dmitrievich of Zvenigorod was a Russian prince of the late 14th and early 15th centuries, known as a son of Grand Prince Dmitry Donskoy and a key figure in the dynastic struggles of the Grand Duchy of Moscow.
• D. Yuri Bogolyubsky
  Yuri Bogolyubsky was a Rus' prince who became the second husband of Queen Tamar of Georgia and briefly co-ruled before being deposed and exiled.
• E. Mstislav the Bold
  Mstislav the Bold was a 13th-century Kievan Rus' prince and military leader known for his resistance against the Mongol invasion, notably during the early clashes that culminated in the Battle of the Kalka River.
• F. None of above. chosen