Video prompt: As the flag drops, they burst forward, engines roaring and tires kicking up clouds of dirt and gravel. The track is a winding maze of sharp turns and steep jumps, challenging the riders' skills and daring. Spectators line the edges, cheering and waving flags, their excitement palpable in the air. One rider, wearing a striking red and black suit, takes the lead, expertly navigating a tight corner with a spray of dirt trailing behind. Another rider, in a neon green outfit, accelerates over a jump, momentarily suspended in the air before landing with a thud and a burst of speed. The race is a thrilling spectacle of speed, skill, and competition, set against the backdrop of a clear blue sky and the distant hum of engines.
Defect: Disappearance( for things that should not disappear but disappeared)