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: Class 317 electric multiple units | Statement: [West Anglia Great Northern, usedRollingStockType, Class 317 electric multiple units]

Target entity: Class 317 electric multiple units
Context triple: [West Anglia Great Northern, usedRollingStockType, Class 317 electric multiple units]

• A. Class 317 electric multiple unit chosen
  The Class 317 electric multiple unit is a type of British suburban electric train introduced in the early 1980s for commuter services on 25 kV AC overhead electrified routes.
• B. Class 315 electric multiple unit
  The Class 315 electric multiple unit is a type of British suburban electric train built in the early 1980s for commuter services in and around London.
• C. Class 319 electric multiple unit
  The Class 319 electric multiple unit is a dual-voltage British commuter train class introduced in the late 1980s for services on routes such as Thameslink, capable of operating on both overhead and third-rail electrification systems.
• D. Class 331 electric multiple unit
  The Class 331 electric multiple unit is a modern British commuter train operated by Northern Trains, designed for high-frequency regional services with rapid acceleration and improved passenger comfort.
• E. Class 321 electric multiple unit
  The Class 321 electric multiple unit is a British suburban and commuter train type introduced in the late 1980s for high-capacity, overhead-electrified passenger services.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.