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: Olgovichi branch of the Rurikid dynasty | Statement: [Sviatoslav Olgovich, memberOf, Olgovichi branch of the Rurikid dynasty]

Target entity: Olgovichi branch of the Rurikid dynasty
Context triple: [Sviatoslav Olgovich, memberOf, Olgovichi branch of the Rurikid dynasty]

• A. Vladimirovichi branch of the Romanov family
  The Vladimirovichi branch of the Romanov family was a prominent cadet line of the Russian imperial dynasty descended from Grand Duke Vladimir Alexandrovich, influential in late imperial politics and succession disputes.
• B. Rurik dynasty
  The Rurik dynasty was the first ruling dynasty of Kievan Rus' and later Muscovy, traditionally traced to the Varangian prince Rurik and his descendants who governed much of Eastern Europe from the 9th to the 16th century.
• C. Olgovichi dynasty chosen
  The Olgovichi dynasty was a medieval ruling family of Rurikid princes that controlled the principality of Chernigov and played a major role in the politics of Kievan Rus.
• D. Romanovichi of Galicia–Volhynia
  The Romanovichi of Galicia–Volhynia were a medieval East Slavic ruling dynasty that governed the powerful Kingdom of Galicia–Volhynia in what is now western Ukraine and parts of Poland and Belarus.
• E. Gediminid dynasty
  The Gediminid dynasty was a powerful medieval ruling family that expanded the Grand Duchy of Lithuania into one of the largest states in Europe and provided monarchs to Lithuania, Poland, and other Eastern European realms.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.