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: RAF Tristar | Statement: [Future Strategic Tanker Aircraft programme, replaced, RAF Tristar]

Target entity: RAF Tristar
Context triple: [Future Strategic Tanker Aircraft programme, replaced, RAF Tristar]

• A. RAF Voyager KC2 aircraft
  The RAF Voyager KC2 is a British military variant of the Airbus A330 used primarily for air-to-air refuelling and strategic air transport by the Royal Air Force.
• B. RAF VC10
  The RAF VC10 was a British long-range jet airliner adapted for military transport and aerial refuelling service with the Royal Air Force.
• C. Douglas A-26 Invader
  The Douglas A-26 Invader is a World War II–era American twin‑engine light bomber and ground-attack aircraft that later saw extensive service in the Korean and Vietnam Wars.
• D. B-1B Lancer
  The B-1B Lancer is a U.S. Air Force supersonic, long-range strategic bomber designed for low-level penetration and heavy payload delivery.
• E. Boeing B-52 Stratofortress
  The Boeing B-52 Stratofortress is a long-range, subsonic strategic bomber used by the United States Air Force since the 1950s, renowned for its heavy payload capacity and exceptional longevity in service.
• 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: RAF Tristar
Triple: [Future Strategic Tanker Aircraft programme, replaced, RAF Tristar]

RAF Tristar was a fleet of converted Lockheed L-1011 TriStar aircraft used by the Royal Air Force primarily for air-to-air refuelling and transport duties.

Target entity: RAF Tristar
Target entity description: RAF Tristar was a fleet of converted Lockheed L-1011 TriStar aircraft used by the Royal Air Force primarily for air-to-air refuelling and transport duties.

• A. RAF Voyager KC2 aircraft
  The RAF Voyager KC2 is a British military variant of the Airbus A330 used primarily for air-to-air refuelling and strategic air transport by the Royal Air Force.
• B. RAF VC10
  The RAF VC10 was a British long-range jet airliner adapted for military transport and aerial refuelling service with the Royal Air Force.
• C. Douglas A-26 Invader
  The Douglas A-26 Invader is a World War II–era American twin‑engine light bomber and ground-attack aircraft that later saw extensive service in the Korean and Vietnam Wars.
• D. B-1B Lancer
  The B-1B Lancer is a U.S. Air Force supersonic, long-range strategic bomber designed for low-level penetration and heavy payload delivery.
• E. Boeing B-52 Stratofortress
  The Boeing B-52 Stratofortress is a long-range, subsonic strategic bomber used by the United States Air Force since the 1950s, renowned for its heavy payload capacity and exceptional longevity in service.
• F. None of above. chosen