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: Duchy of Warsaw | Statement: [Józef Zajączek, allegiance, Duchy of Warsaw]

Target entity: Duchy of Warsaw
Context triple: [Józef Zajączek, allegiance, Duchy of Warsaw]

• A. Duchy of Warsaw chosen
  The Duchy of Warsaw was a French client state created by Napoleon in 1807 as a semi-independent Polish state, serving as a key ally and military partner of the French Empire during the Napoleonic Wars.
• B. Kingdom of Poland (Congress Poland)
  The Kingdom of Poland (Congress Poland) was a semi-autonomous Polish state under Russian control established by the Congress of Vienna in 1815 and gradually stripped of its autonomy over the 19th century.
• C. Duchy of Friedland
  The Duchy of Friedland was a short-lived early 17th-century principality in the Holy Roman Empire, created for the imperial general Albrecht von Wallenstein and centered in northern Bohemia.
• D. Duchy of Lublin
  The Duchy of Lublin was a medieval Polish territorial principality centered on the city of Lublin, forming part of the fragmented Piast-ruled Kingdom of Poland.
• E. Grand Duchy of Posen
  The Grand Duchy of Posen was a Prussian-controlled autonomous province established after the Napoleonic era, inhabited largely by Poles and serving as a focal point of Polish national aspirations under foreign rule.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.