<human>:  What is the best way to remove stubborn stains from a carpet?
<bot>: The best way to remove stubborn stains from a carpet is to blot the stain with a damp cloth to lift it, then use a carpet cleaning solution to target the stain and lift it away from the carpet fibers. Allow the solution to sit for 15 to 20 minutes before rinsing or vacuuming. If the stain persists, you can repeat the process or use a stronger cleaning solution to remove it.