Video prompt: The bike's wheels spin rapidly, kicking up small clouds of dust from the gravel trail. A man in a neon green running shirt and black shorts sprints energetically behind the bike, his sneakers pounding rhythmically against the ground. His face is a mix of determination and joy as he matches the bike's pace, his arms pumping in sync with his strides. Around them, families picnic on the grass, children fly kites in the gentle breeze, and a group of friends toss a frisbee back and forth. The air is filled with the sounds of laughter, birds chirping, and the distant hum of a nearby fountain. As the man and the bike continue their playful chase, the sun casts long shadows, adding a golden hue to the lively scene.
Defect: Blurring (abnormal blur, e.g. one bird of a group blurs)