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: Volga cascade of reservoirs | Statement: [Upper Volga Reservoir, isPartOf, Volga cascade of reservoirs]

Target entity: Volga cascade of reservoirs
Context triple: [Upper Volga Reservoir, isPartOf, Volga cascade of reservoirs]

• A. Volga–Kama cascade of reservoirs chosen
  The Volga–Kama cascade of reservoirs is a large system of interconnected artificial lakes created by dams on the Volga and Kama rivers in Russia, serving major roles in hydroelectric power generation, navigation, water supply, and flood control.
• B. Volga waterway system
  The Volga waterway system is an extensive network of interconnected rivers, reservoirs, and canals centered on the Volga River that forms a major inland transportation and shipping route across western Russia.
• C. Upper Volga Reservoir
  The Upper Volga Reservoir is a large artificial lake on the upper Volga River in central Russia, created by damming to support hydroelectric power generation, water supply, and navigation.
• D. 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.
• E. Volga–Oka river network
  The Volga–Oka river network is a major interconnected system of waterways in European Russia centered on the Volga and Oka rivers, supporting regional transport, ecology, and settlement.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.