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A speaker plays music clearly next to a swimming pool. A person dips their head fully under the water, and the music drops to a faint distant rumble.

C3-1-05 Environment Transition · propagation_medium principle: Liquid as Medium (Fluid)
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Per-prompt rubric

Basic standards

Visual presence

  • a speaker
  • a swimming pool
  • a person

Event: a person submerges in a pool while a speaker plays music

Audio presence

  • a speaker

Sound: music playback

Key standards

Visual physical commonsense (V-PC)

  • A speaker is visibly present at the poolside with music playing from it.
  • The person submerges into the pool with continuous head-going-fully-under motion.

Audio physical commonsense (A-PC)

  • The music plays clearly above water from the visible speaker.
  • The music drops to a faint distant rumble once the person is submerged.

Cross-modal physical commonsense (AV-PC)

  • The shift to muffled distant music coincides temporally with the person's head submerging.