Video prompt: A sleek passenger airplane taking off from a busy airport runway at dawn, with the city skyline in the background.
Defect: Deformation (when Object is involved in an act,  anything in this process that's weird. e.g. people walk into a wall. "Walk" is an act)
Explanation: The shape and shadow of the airplane undergo unnatural changes as it descends, creating an unrealistic effect, as both the airplane’s structure and its shadow should remain consistent.