Task: Question Generation
Input (English): Background Paragraph: The body's second line of defense against pathogens includes the inflammatory response. If bacteria enter the skin through a scrape, the area may become red, warm, and painful. These are signs of inflammation. Inflammation is one way the body reacts to infections or injuries. Inflammation is caused by chemicals that are released when skin or other tissues are damaged. The chemicals cause nearby blood vessels to dilate, or expand. This increases blood flow to the damaged area, which makes the area red and slightly warm. The chemicals also attract white blood cells called neutrophils to the wound and cause them to leak out of blood vessels into the damaged tissue. 
Story: Adam was playing tag football when one of his friends tagged him a bit too hard and caused him to tumble and fall. He noticed when he fell, he got a pretty bad cut in his knee. He decided to ignore the injury for now and keep playing. Later when he got home he realized the area of the cut was warm and swollen.
Output (English): Given Adam's injury is mostly healed and inflammation has subsided will, the blood vessels around the injury have expanded or contracted?