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 321 EMU | Statement: [Mayflower Line, usesRollingStock, Class 321 EMU]

Target entity: Class 321 EMU
Context triple: [Mayflower Line, usesRollingStock, Class 321 EMU]

• A. Class 323 EMU
  The Class 323 EMU is a type of British electric multiple unit train widely used on suburban and regional commuter services, particularly around Birmingham and Manchester.
• B. Class 317 EMU
  The Class 317 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban and commuter services on 25 kV AC overhead electrified routes.
• C. Class 313 EMU
  The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
• D. Class 83 EMU
  The Class 83 EMU is an electric multiple unit train type used by Malaysia’s KTM Komuter suburban rail service for passenger operations.
• E. Class 717 EMU
  The Class 717 EMU is a modern electric multiple unit train operated by Great Northern for suburban commuter services into London, particularly on routes through the Northern City Line.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Class 321 EMU
Triple: [Mayflower Line, usesRollingStock, Class 321 EMU]

The Class 321 EMU is a British electric multiple-unit passenger train widely used on suburban and regional services in England since the late 1980s.

Target entity: Class 321 EMU
Target entity description: The Class 321 EMU is a British electric multiple-unit passenger train widely used on suburban and regional services in England since the late 1980s.

• A. Class 323 EMU
  The Class 323 EMU is a type of British electric multiple unit train widely used on suburban and regional commuter services, particularly around Birmingham and Manchester.
• B. Class 317 EMU
  The Class 317 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban and commuter services on 25 kV AC overhead electrified routes.
• C. Class 313 EMU
  The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
• D. Class 83 EMU
  The Class 83 EMU is an electric multiple unit train type used by Malaysia’s KTM Komuter suburban rail service for passenger operations.
• E. Class 717 EMU
  The Class 717 EMU is a modern electric multiple unit train operated by Great Northern for suburban commuter services into London, particularly on routes through the Northern City Line.
• F. None of above. chosen