Descr1: 1. A person is sitting on a horse
  2. The person dismounts the horse
  3. Another horse next to the person is floating in the air with its feet not touching the ground
  4. The person crawls beneath the horse while the horse is still floating in the air
Descr2: 1. A horse is hovering above the ground
  2. The player is standing beside the hovering horse
  3. The player crouches down
  4. The player crouches under the horse