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An astronaut hammers a stake into the lunar surface. The hammer visibly strikes the stake but the impact produces no sound.

C1-3-08 Steady State · sound_persistence principle: Vacuum / sound absence (Fluid)
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MagiHumanGAIR-NLP · open
Per-prompt rubric

Basic standards

Visual presence

  • an astronaut
  • a hammer
  • a stake
  • the lunar surface

Event: an astronaut hammers a stake into the lunar surface

Audio presence

  • a hammer strike

Sound: silence

Key standards

Visual physical commonsense (V-PC)

  • An astronaut on the lunar surface visibly swings a hammer and strikes a stake in the ground.
  • The hammer head makes clear contact with the stake on each strike, and the stake embeds further into the ground with each strike.

Audio physical commonsense (A-PC)

  • The clip contains no audible sound throughout.

Cross-modal physical commonsense (AV-PC)

  • No audio sound coincides with the visible hammer strikes.