Video prompt: Her father, wearing a thick green parka and a beanie, gives her a gentle push down the small hill in their snow-covered backyard. The sled glides smoothly over the fresh powder, leaving a trail behind. Nearby, her older brother, clad in a sleek black ski jacket and goggles, expertly maneuvers his snowboard, carving graceful arcs in the snow. Their mother, wrapped in a cozy purple scarf and mittens, cheers them on while holding a steaming mug of hot cocoa. Friends join in the fun, some attempting playful snowball fights, while others build a snowman, complete with a carrot nose and a scarf. The backyard is a winter wonderland, with snow-laden trees and the distant sound of laughter echoing through the crisp, cold air.
Defect: Blurring (abnormal blur, e.g. one bird of a group blurs)
Explanation: His face is unusually blurred and it looks like his facial features are mixed together.