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: Lockheed Constellation (testbed) | Statement: [Rolls-Royce Olympus, usedInAircraft, Lockheed Constellation (testbed)]

Target entity: Lockheed Constellation (testbed)
Context triple: [Rolls-Royce Olympus, usedInAircraft, Lockheed Constellation (testbed)]

• A. Douglas D-558-2 Skyrocket
  The Douglas D-558-2 Skyrocket was a U.S. Navy and NACA experimental research aircraft that became one of the first aircraft to exceed Mach 2 in level flight during the early 1950s.
• B. Lockheed L-1649 Starliner
  The Lockheed L-1649 Starliner is a late-1950s long-range, piston-engined airliner and the final, most advanced variant of Lockheed’s Constellation series, designed for transatlantic and intercontinental routes.
• C. Convair XF-92
  The Convair XF-92 was an experimental American delta-wing jet interceptor prototype developed in the late 1940s that served as a pioneering testbed for high-speed delta-wing aircraft design.
• D. Lockheed C‑69 Constellation
  The Lockheed C‑69 Constellation was a World War II-era four‑engined military transport aircraft that served as the precursor to the famous Lockheed Constellation airliner.
• E. Douglas D-558-1 Skystreak
  The Douglas D-558-1 Skystreak was an experimental U.S. Navy research jet of the late 1940s used to investigate high-subsonic and transonic flight, contributing key data to early supersonic aircraft development.
• 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: Lockheed Constellation (testbed)
Triple: [Rolls-Royce Olympus, usedInAircraft, Lockheed Constellation (testbed)]

The Lockheed Constellation (testbed) was a modified version of the classic Constellation airliner used as a flying testbed for the Rolls-Royce Olympus jet engine.

Target entity: Lockheed Constellation (testbed)
Target entity description: The Lockheed Constellation (testbed) was a modified version of the classic Constellation airliner used as a flying testbed for the Rolls-Royce Olympus jet engine.

• A. Douglas D-558-2 Skyrocket
  The Douglas D-558-2 Skyrocket was a U.S. Navy and NACA experimental research aircraft that became one of the first aircraft to exceed Mach 2 in level flight during the early 1950s.
• B. Lockheed L-1649 Starliner
  The Lockheed L-1649 Starliner is a late-1950s long-range, piston-engined airliner and the final, most advanced variant of Lockheed’s Constellation series, designed for transatlantic and intercontinental routes.
• C. Convair XF-92
  The Convair XF-92 was an experimental American delta-wing jet interceptor prototype developed in the late 1940s that served as a pioneering testbed for high-speed delta-wing aircraft design.
• D. Lockheed C‑69 Constellation
  The Lockheed C‑69 Constellation was a World War II-era four‑engined military transport aircraft that served as the precursor to the famous Lockheed Constellation airliner.
• E. Douglas D-558-1 Skystreak
  The Douglas D-558-1 Skystreak was an experimental U.S. Navy research jet of the late 1940s used to investigate high-subsonic and transonic flight, contributing key data to early supersonic aircraft development.
• F. None of above. chosen