Triple

Target class: United States nuclear weapons test
Context triple: [Operation Ivy, instanceOf, United States nuclear weapons test]

• A. nuclear test
  A nuclear test is an experimental detonation or controlled release of nuclear energy conducted to develop, evaluate, or demonstrate the performance and effects of nuclear weapons or technology.
• B. atomic bomb test
  An atomic bomb test is a controlled detonation of a nuclear device conducted to evaluate its design, yield, and effects for military, scientific, or political purposes.
• C. nuclear weapons test series chosen
  A nuclear weapons test series is an organized sequence of nuclear detonations conducted under a unified program or objective to develop, evaluate, or demonstrate nuclear weapon capabilities.
• D. former nuclear test site
  A former nuclear test site is a geographically defined area where nuclear weapons or devices were previously detonated for testing purposes and which may still be subject to environmental monitoring, contamination concerns, and restricted use.
• E. plutonium implosion-type nuclear bomb
  A plutonium implosion-type nuclear bomb is a weapon that uses precisely timed conventional explosives to symmetrically compress a subcritical plutonium core into a supercritical state, initiating a rapid, uncontrolled nuclear chain reaction.
• F. None of above.