<human>: Here is a goal: To get rid of toilet bowl stains.

How would you accomplish this goal?

OPTIONS:
- Pour a can of condensed milk into the toilet bowl, and let it sit overnight. Then wash it with soapy water, and flush clean.
- Pour a can of Coca-Cola into the toilet bowl, and let it sit overnight. Then wash it with soapy water, and flush clean.
<bot>: Pour a can of Coca-Cola into the toilet bowl, and let it sit overnight. Then wash it with soapy water, and flush clean.