Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to clean a bong [title] Gather supplies. [step] Before cleaning your bong, you'll need to round up some supplies, including: a sink or basin; coarse salt, rice, or baking soda; rubbing alcohol, vinegar, or another cleaner; clean water; and latex gloves. [title] Empty the bong and rinse and fill it with warm water.

Ending1: [step] At the very least, it should be relatively large enough to cover any remaining suds and dirt on the outside. Pour it in and let the bong soak overnight. Ending2: [step] Fill the bong with 1/2 a cup of warm, but not boiling, water so that it fills to the top. Point the lid of the bong downwards so that it touches the bowl. Ending3: [step] This will remove any residue from the surface of the bong, including any grease. [title] Place the bong and water in a small container, taking care not to splash the water at any point. Ending4: [step] While wearing your latex gloves, empty out your bong as well as you can. Pour out old bong water and remove any spent herb.

Answer format: ending1/ending2/ending3/ending4