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: British Rail Class 56 | Statement: [British Rail Class 47, successor, British Rail Class 56]

Target entity: British Rail Class 56
Context triple: [British Rail Class 47, successor, British Rail Class 56]

• A. British Rail Class 86
  The British Rail Class 86 is a class of electric locomotives introduced in the 1960s for high-speed passenger and freight services on the West Coast Main Line and other electrified routes in the UK.
• B. British Rail Class 47
  The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
• C. British Rail Class 50
  The British Rail Class 50 is a class of powerful diesel-electric locomotives built in the late 1960s for high-speed passenger services on the British railway network, particularly on the West Coast Main Line.
• D. British Rail Class 37
  The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
• E. British Rail Class 40
  The British Rail Class 40 is a class of heavy diesel-electric locomotives built in the late 1950s and early 1960s for express passenger and freight services on British Railways, now preserved and operated on heritage lines.
• 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: British Rail Class 56
Triple: [British Rail Class 47, successor, British Rail Class 56]

The British Rail Class 56 is a heavy freight diesel-electric locomotive introduced in the 1970s for high-power haulage duties on the UK rail network.

Target entity: British Rail Class 56
Target entity description: The British Rail Class 56 is a heavy freight diesel-electric locomotive introduced in the 1970s for high-power haulage duties on the UK rail network.

• A. British Rail Class 86
  The British Rail Class 86 is a class of electric locomotives introduced in the 1960s for high-speed passenger and freight services on the West Coast Main Line and other electrified routes in the UK.
• B. British Rail Class 47
  The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
• C. British Rail Class 50
  The British Rail Class 50 is a class of powerful diesel-electric locomotives built in the late 1960s for high-speed passenger services on the British railway network, particularly on the West Coast Main Line.
• D. British Rail Class 37
  The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
• E. British Rail Class 40
  The British Rail Class 40 is a class of heavy diesel-electric locomotives built in the late 1950s and early 1960s for express passenger and freight services on British Railways, now preserved and operated on heritage lines.
• F. None of above. chosen