Triple

Target class: Southern Pacific AC-11
Context triple: [SP 4258, instanceOf, Southern Pacific AC-11]

• A. Pan Am aircraft
  A Pan Am aircraft is a commercial airliner operated by the former Pan American World Airways, typically recognized for its iconic blue globe logo and role in pioneering international jet travel.
• B. Douglas aircraft
  Douglas aircraft are a series of commercial and military airplanes designed and manufactured by the Douglas Aircraft Company, known for their significant impact on aviation history through models like the DC airliners and C-series transports.
• C. Convair 240 variant
  A Convair 240 variant is a specific model within the Convair 240 family of twin‑engine, short- to medium-range airliners that incorporates design modifications or performance improvements over the original baseline aircraft.
• D. Boeing B-50 Superfortress
  The Boeing B-50 Superfortress was a post–World War II American strategic bomber, an improved derivative of the B-29 with more powerful engines and structural enhancements, used primarily for long-range nuclear deterrence and reconnaissance in the early Cold War.
• E. Lockheed Model 10 Electra variant
  A Lockheed Model 10 Electra variant is a specific configuration of the twin‑engine, all‑metal monoplane airliner distinguished by modifications in equipment, performance, or role (such as transport, survey, or military use) from the standard Model 10 design.
• F. None of above. chosen