MBench-A/samples/causal/a00195_00136/sample.json

{
  "sample_id": "a00195_00136",
  "subset": "causal",
  "caption": "A wooden marble run track, supported by orange blocks, spans across a white surface with a toy truck nearby. Colorful marbles—blue, purple, green, yellow, and orange—roll down the grooved wooden channel, interacting through collisions and momentum transfer. Some marbles exit the track mid-run, while others continue rolling or bounce off edges, demonstrating gravity, friction, and inertia in motion.",
  "ground_truth_media": {
    "source_video": "source_video.mp4",
    "first_frame": "first_frame.png"
  }
}