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: Alexei Nikolaevich, Tsarevich of Russia | Statement: [Anastasia Nikolaevna of Russia, executedWith, Alexei Nikolaevich, Tsarevich of Russia]

Target entity: Alexei Nikolaevich, Tsarevich of Russia
Context triple: [Anastasia Nikolaevna of Russia, executedWith, Alexei Nikolaevich, Tsarevich of Russia]

• A. Alexei Nikolaevich, Tsarevich of Russia chosen
  Alexei Nikolaevich, Tsarevich of Russia, was the hemophiliac heir apparent and only son of Tsar Nicholas II, whose assassination with his family in 1918 marked the end of the Russian imperial dynasty.
• B. Alexei Petrovich, Tsarevich of Russia
  Alexei Petrovich, Tsarevich of Russia, was the ill-fated heir to the Russian throne whose conflict with his father Peter the Great led to his arrest, torture, and death in custody.
• C. Grand Duke Alexei Alexandrovich of Russia
  Grand Duke Alexei Alexandrovich of Russia was a 19th-century Romanov grand duke and naval officer known for his prominent role in the Imperial Russian Navy and his position within the close circle of the ruling dynasty.
• D. Grand Duke Alexander Alexandrovich of Russia
  Grand Duke Alexander Alexandrovich of Russia was a short-lived son of Emperor Alexander III and Empress Maria Feodorovna, and younger brother of Tsar Nicholas II.
• E. Grand Duke Dmitri Pavlovich of Russia
  Grand Duke Dmitri Pavlovich of Russia was a Romanov prince best known for his role in the 1916 assassination of Grigori Rasputin and his subsequent exile, after which he lived much of his life in Western Europe.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.