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: Pennsylvania Railroad K4s class | Statement: [Standard Passenger Pacific of the PRR, refersTo, Pennsylvania Railroad K4s class]

Target entity: Pennsylvania Railroad K4s class
Context triple: [Standard Passenger Pacific of the PRR, refersTo, Pennsylvania Railroad K4s class]

• A. PRR K4s chosen
  The PRR K4s was a class of iconic 4-6-2 "Pacific" steam locomotives that served as the primary passenger power for the Pennsylvania Railroad in the first half of the 20th century.
• B. Nickel Plate Road 2-8-4 Berkshires
  The Nickel Plate Road 2-8-4 Berkshires were powerful high-speed steam freight locomotives famed for their role in hauling fast freight trains across the Nickel Plate Road in the mid-20th century.
• C. Standard Passenger Pacific of the PRR
  The "Standard Passenger Pacific of the PRR" refers to the Pennsylvania Railroad’s K4s class, a highly successful and iconic 4-6-2 steam locomotive that became the railroad’s primary passenger engine in the early to mid-20th century.
• D. Norfolk and Western Class J
  The Norfolk and Western Class J was a famed series of streamlined 4-8-4 steam locomotives renowned for their power, efficiency, and elegant design, used primarily for high-speed passenger service in the mid-20th century United States.
• E. EMD GP40
  The EMD GP40 is a four-axle diesel-electric locomotive built by Electro-Motive Division in the late 1960s and early 1970s, widely used by North American railroads for freight service.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.