sentence: A man in yellow shirt and black tights, walked towards the bike, bend over and unscrew the screw. sentence:  The man in yellow shirt took out his tools from his pocket, he took off the bike wheel from the bike, pull out a yellow tool, insert it between the rubber and metal, removed the rubber inside the tire, tried to find the hole, took a square cloth, wipe the tire, then put the sticker, he pumped the rubber then put it back in the tire. sentence:  The person screw the wheel back to the bike.