Video prompt: He holds a heavy, metallic ball attached to a thick, rusted chain, its surface glinting in the afternoon sun. Around him, children are playing tag, their laughter echoing through the air, while joggers pass by on the winding path. The man swings the ball in a wide arc, the chain clinking rhythmically as it slices through the air. Nearby, a group of curious onlookers gathers, intrigued by the man's skillful display. The leaves of the towering oak trees rustle gently in the breeze, casting dappled shadows on the ground. As the man continues his demonstration, a dog barks excitedly in the distance, adding to the lively atmosphere of the park.
Defect: Blurring (abnormal blur, e.g. one bird of a group blurs)
Explanation: These two people in the background are abnormally blurred.