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: Metropolitan Railway A Class locomotives | Statement: [Metropolitan Railway, usedRollingStock, Metropolitan Railway A Class locomotives]

Target entity: Metropolitan Railway A Class locomotives
Context triple: [Metropolitan Railway, usedRollingStock, Metropolitan Railway A Class locomotives]

• A. LMS Jubilee Class
  The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
• B. LMS Stanier Class 5 4-6-0 "Black Five" locomotives
  The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
• C. BR Standard Class 4 steam locomotives
  BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight services.
• D. Metropolitan Railway
  The Metropolitan Railway was the pioneering underground railway in London and the world’s first urban underground passenger railway, forming the core of what became the London Underground.
• E. Mark II trains
  Mark II trains are an updated generation of streamlined monorail vehicles used on the Disneyland Monorail System, featuring improved design and capacity over the original models.
• 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: Metropolitan Railway A Class locomotives
Triple: [Metropolitan Railway, usedRollingStock, Metropolitan Railway A Class locomotives]

The Metropolitan Railway A Class locomotives were early steam tank engines built in the late 19th century to haul passenger trains on London’s pioneering underground railway.

Target entity: Metropolitan Railway A Class locomotives
Target entity description: The Metropolitan Railway A Class locomotives were early steam tank engines built in the late 19th century to haul passenger trains on London’s pioneering underground railway.

• A. LMS Jubilee Class
  The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
• B. LMS Stanier Class 5 4-6-0 "Black Five" locomotives
  The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
• C. BR Standard Class 4 steam locomotives
  BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight services.
• D. Metropolitan Railway chosen
  The Metropolitan Railway was the pioneering underground railway in London and the world’s first urban underground passenger railway, forming the core of what became the London Underground.
• E. Mark II trains
  Mark II trains are an updated generation of streamlined monorail vehicles used on the Disneyland Monorail System, featuring improved design and capacity over the original models.
• F. None of above.