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: Principality of Starodub | Statement: [Olgovichi, ruled, Principality of Starodub]

Target entity: Principality of Starodub
Context triple: [Olgovichi, ruled, Principality of Starodub]

• A. Principality of Tver
  The Principality of Tver was a medieval East Slavic state centered on the city of Tver that rivaled Moscow for dominance in northeastern Rus' before being annexed by the Grand Duchy of Moscow.
• B. Principality of Rostov
  The Principality of Rostov was a medieval East Slavic principality centered on the city of Rostov, one of the oldest political and cultural centers in northeastern Rus’.
• C. Principality of Yaroslavl
  The Principality of Yaroslavl was a medieval East Slavic principality centered on the city of Yaroslavl in what is now central Russia.
• D. Principality of Chernigov
  The Principality of Chernigov was a major medieval East Slavic state centered on the city of Chernihiv, influential within Kievan Rus' and later ruled by the Olgovichi dynasty.
• E. Principality of Polotsk
  The Principality of Polotsk was a major medieval East Slavic state centered on the city of Polotsk, influential in the political and cultural development of what is now Belarus and parts of northeastern 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: Principality of Starodub
Triple: [Olgovichi, ruled, Principality of Starodub]

The Principality of Starodub was a medieval East Slavic principality centered on the town of Starodub, historically associated with the Rurikid Olgovichi dynasty.

Target entity: Principality of Starodub
Target entity description: The Principality of Starodub was a medieval East Slavic principality centered on the town of Starodub, historically associated with the Rurikid Olgovichi dynasty.

• A. Principality of Tver
  The Principality of Tver was a medieval East Slavic state centered on the city of Tver that rivaled Moscow for dominance in northeastern Rus' before being annexed by the Grand Duchy of Moscow.
• B. Principality of Rostov
  The Principality of Rostov was a medieval East Slavic principality centered on the city of Rostov, one of the oldest political and cultural centers in northeastern Rus’.
• C. Principality of Yaroslavl
  The Principality of Yaroslavl was a medieval East Slavic principality centered on the city of Yaroslavl in what is now central Russia.
• D. Principality of Chernigov
  The Principality of Chernigov was a major medieval East Slavic state centered on the city of Chernihiv, influential within Kievan Rus' and later ruled by the Olgovichi dynasty.
• E. Principality of Polotsk
  The Principality of Polotsk was a major medieval East Slavic state centered on the city of Polotsk, influential in the political and cultural development of what is now Belarus and parts of northeastern Europe.
• F. None of above. chosen