Human: What is the best way to remove a stain from a white shirt? Assistant: 
The best way to remove a stain from a white shirt is to dab the stain gently with a clean, damp cloth and a mild detergent. Rinse the cloth frequently in clean, warm water and apply a fresh solution of laundry detergent and warm water to the stain. Allow the solution to soak into the stain for a few minutes before rinsing well and air drying the shirt. This is the most effective way to remove a stain from a white shirt.