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 locomotives | Statement: [BR Standard Class 4 steam locomotives, category, BR Standard locomotives]

Target entity: BR Standard locomotives
Context triple: [BR Standard Class 4 steam locomotives, category, BR Standard locomotives]

• A. 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.
• 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. British Rail steam locomotives chosen
  British Rail steam locomotives were the steam-powered engines operated on Britain’s nationalized railway system in the mid-20th century, spanning a wide range of classes used for passenger and freight services before diesel and electric traction took over.
• D. 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.
• E. LMS Ivatt Class 2 2-6-0 steam locomotives
  The LMS Ivatt Class 2 2-6-0 steam locomotives were a class of light mixed-traffic engines designed in the 1940s for the London, Midland and Scottish Railway and later British Railways, intended for branch line and secondary duties.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.