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 of the Kalka River | Statement: [Kalka River, hasHistoricalEvent, Battle of the Kalka River]

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

• A. 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.
• B. Battle of Maloyaroslavets
  The Battle of Maloyaroslavets was a key engagement during Napoleon’s 1812 Russian campaign that forced the French army to retreat along the devastated route of its advance, contributing significantly to its eventual destruction.
• C. Battle of Velbazhd
  The Battle of Velbazhd was a decisive 1330 medieval clash between the Bulgarian and Serbian states that cemented Serbia’s regional dominance in the Balkans.
• D. Battle of the Vozha
  The Battle of the Vozha was a 1378 clash near the Vozha River in which the forces of the Grand Duchy of Moscow defeated a Mongol-Tatar army, marking an important step toward the decline of the Golden Horde’s dominance over Rus.
• E. Battle of Lake Peipus
  The Battle of Lake Peipus was a 1242 medieval clash in which Alexander Nevsky’s Novgorod forces decisively defeated the Teutonic Knights on the frozen lake, halting their eastward expansion.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.