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: London Underground 1973 Stock | Statement: [Metro-Cammell, notableWork, London Underground 1973 Stock]

Target entity: London Underground 1973 Stock
Context triple: [Metro-Cammell, notableWork, London Underground 1973 Stock]

• A. London Underground 1972 Stock
  The London Underground 1972 Stock is a long-serving fleet of tube trains primarily used on the Bakerloo line, known for its distinctive older design and continued operation well beyond its originally intended lifespan.
• B. London Underground 1959 Stock
  The London Underground 1959 Stock was a fleet of aluminum-bodied electric multiple units built for deep-level tube lines, known for introducing more modern design and improved performance to mid-20th-century London Underground services.
• C. London Underground 1962 Stock
  The London Underground 1962 Stock was a fleet of electric multiple unit trains built for the Central line, known for their aluminium bodies and long service life on the deep-level tube network.
• D. London Underground 1992 Stock
  The London Underground 1992 Stock is a fleet of electric multiple unit trains primarily used on the Central line, known for introducing modern traction and passenger features to the deep-level Tube network in the early 1990s.
• E. former London Underground 1938 Stock
  The former London Underground 1938 Stock was a class of electric multiple unit trains that served on deep-level tube lines for decades and later saw extended use on other British railways due to their robust design and longevity.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: London Underground 1973 Stock
Target entity description: The London Underground 1973 Stock is a fleet of deep-level tube trains introduced in the early 1970s for the Piccadilly line, known for their long service life and distinctive design tailored to the smaller tunnel profiles of the London Underground.

• A. London Underground 1972 Stock
  The London Underground 1972 Stock is a long-serving fleet of tube trains primarily used on the Bakerloo line, known for its distinctive older design and continued operation well beyond its originally intended lifespan.
• B. London Underground 1959 Stock
  The London Underground 1959 Stock was a fleet of aluminum-bodied electric multiple units built for deep-level tube lines, known for introducing more modern design and improved performance to mid-20th-century London Underground services.
• C. London Underground 1962 Stock
  The London Underground 1962 Stock was a fleet of electric multiple unit trains built for the Central line, known for their aluminium bodies and long service life on the deep-level tube network.
• D. London Underground 1992 Stock
  The London Underground 1992 Stock is a fleet of electric multiple unit trains primarily used on the Central line, known for introducing modern traction and passenger features to the deep-level Tube network in the early 1990s.
• E. former London Underground 1938 Stock
  The former London Underground 1938 Stock was a class of electric multiple unit trains that served on deep-level tube lines for decades and later saw extended use on other British railways due to their robust design and longevity.
• F. None of above. chosen