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: Battle on the Kalka | Statement: [Battle of the Kalka River, alsoKnownAs, Battle on the Kalka]

Target entity: Battle on the Kalka
Context triple: [Battle of the Kalka River, alsoKnownAs, Battle on the Kalka]

• A. Cossack Host
  The Cossack Host was a semi-autonomous military and social organization of Cossacks that formed the backbone of frontier defense and self-governance in Eastern Europe, particularly in what is now Ukraine and southern Russia.
• B. Great Stand on the Ugra River
  The Great Stand on the Ugra River was a 1480 standoff between Muscovite and Tatar forces that effectively ended Mongol-Tatar dominance over Russia and marked a key step toward Russian independence and statehood.
• C. Battle of the Kalka River chosen
  The Battle of the Kalka River was a 1223 clash in which Mongol forces decisively defeated a coalition of Kievan Rus' princes and their Cuman allies, marking an early and ominous demonstration of Mongol military power in Eastern Europe.
• D. War of the Two Kings
  The War of the Two Kings was a late 17th-century conflict in Ireland between supporters of the deposed Catholic King James II and those of the Protestant King William III, forming part of the wider struggle for the English, Scottish, and Irish thrones.
• E. Impresa di Fiume
  Impresa di Fiume was the 1919–1920 nationalist occupation of the city of Fiume (now Rijeka, Croatia) by Italian irregulars led by poet-soldier Gabriele D’Annunzio, often seen as a precursor to European fascist movements.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.