<human>:  How to remove a stubborn red wine stain from a carpet?
<bot>: 
1. Start by blotting the red wine spill with a clean cloth or paper towel.
2. Prepare a solution of one part white vinegar and one part cold water.
3. Put the solution on the red wine stain and use a fresh cloth or paper towel to blot it until it is no longer visible.
4. If necessary, repeat steps 2 and 3.
5. To remove any lingering odor, sprinkle some baking soda on the stained area and let it sit for 10 minutes.
6. Vacuum the area to remove the baking soda.
7. If the stain persists, consult a professional carpet cleaner.