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: Tsardom of Russia | Statement: [regency of Sophia Alekseyevna, country, Tsardom of Russia]

Target entity: Tsardom of Russia
Context triple: [regency of Sophia Alekseyevna, country, Tsardom of Russia]

• A. Tsardom of Russia chosen
  The Tsardom of Russia was the centralized Russian state ruled by tsars from the mid-16th to early 18th century, during which it expanded dramatically across Eurasia and laid the foundations for the later Russian Empire.
• B. Russian Empire
  The Russian Empire was a vast, autocratic state that existed from 1721 to 1917, spanning Eastern Europe, Northern Asia, and parts of North America, and serving as a major political and military power in world affairs.
• C. Imperial Court of Russia
  The Imperial Court of Russia was the opulent royal household and administrative center surrounding the Russian tsars, serving as the political, cultural, and ceremonial heart of the Russian Empire until the 1917 revolution.
• D. Grand Duchy of Moscow
  The Grand Duchy of Moscow was a late medieval Russian principality that expanded from a small Muscovite domain into the core of a centralized Russian state, eventually forming the basis of the Tsardom of Russia.
• E. Holy Rus'
  Holy Rus' is a religious and political ideal in Russian thought that envisions Russia as a divinely chosen Orthodox Christian civilization and moral-spiritual community.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.