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: Kostroma River and Volga River | Statement: [Ipatiev Monastery, locatedAtConfluenceOf, Kostroma River and Volga River]

Target entity: Kostroma River and Volga River
Context triple: [Ipatiev Monastery, locatedAtConfluenceOf, Kostroma River and Volga River]

• A. Kostroma River chosen
  The Kostroma River is a major waterway in central Russia that flows through Kostroma Oblast before joining the Volga River.
• B. Volga–Kama river system
  The Volga–Kama river system is a major interconnected river network in European Russia, centered on the Volga and Kama rivers and their tributaries, that drains a vast portion of the East European Plain into the Caspian Sea.
• C. Msta River
  The Msta River is a waterway in northwestern Russia that flows from the Valdai Hills through the Novgorod and Tver regions before joining the Volkhov River basin.
• D. Volga River at Tver
  The Volga River at Tver is a broad, historically significant stretch of Russia’s longest river flowing through the city of Tver, serving as a key scenic and cultural landmark.
• E. Western Dvina River
  The Western Dvina River, also known as the Daugava, is a major Eastern European river flowing from Russia through Belarus and Latvia into the Baltic Sea.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.