Human: What is the best way to clean a stained carpet? Assistant: 
The best way to clean a stained carpet is to blot the stain with a paper towel or cloth, then use a mild detergent and water solution to scrub the area. Blot again with the paper towel or cloth until the stain is removed. If necessary, repeat this process until the stain is completely gone. Finally, rinse the area with cold water and blot dry with a dry paper towel or cloth.