Human: What's the best way to clean a toilet that is clogged? Assistant: 
The best way to clean a toilet that is clogged is to use a plunger. Start by placing the plunger over the drain, then press down firmly and repeatedly while holding it in place for 10-15 seconds each time. If this doesn't work, you can try pouring boiling water down the drain followed by a cup of baking soda mixed with a few drops of dishwashing liquid. Let the mixture sit for about 15 minutes before flushing.