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: BR Standard Class 5 | Statement: [British Railways London Midland Region, operatedLocomotiveClass, BR Standard Class 5]

Target entity: BR Standard Class 5
Context triple: [British Railways London Midland Region, operatedLocomotiveClass, BR Standard Class 5]

• A. BR Standard Class 5 chosen
  The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway network.
• B. LNER Class K3
  The LNER Class K3 was a class of British 2-6-0 steam locomotives designed by Sir Nigel Gresley for heavy mixed-traffic work on the London and North Eastern Railway.
• C. 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.
• D. LMS Royal Scot Class
  The LMS Royal Scot Class was a class of British 4-6-0 steam locomotives built for the London, Midland and Scottish Railway, renowned for hauling express passenger services on the West Coast Main Line.
• E. GWR Hall Class
  The GWR Hall Class was a highly successful class of mixed-traffic 4-6-0 steam locomotives designed by Charles Collett for the Great Western Railway in the UK, renowned for their versatility and reliability.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.