Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to use cbd oil [title] Use a water bong and a healthstone if you already have them. [step] Place a healthstone, which is a carbon-stone patty, into your bowl and scoop some cbd oil onto the end of a dabber. Then, hold the end of the dabber just over the healthstone and light the dabber with a lighter.

Ending1: [substeps] The lighter end of the dabber will be used to pound cbd oil directly into the fillet. [title] Plug your filet for more demanding oil. Ending2: This will heat up the dabber so that the oil falls onto the healthstone and becomes vaporized. Light the bowl and use the water bong normally, by inhaling through the mouthpiece. Ending3: Alternatively, you can fill the cup with water and pour oil over the burned area. Or you can place the concoction into a water bong and keep it filled with oil for about another hour. Ending4: Place the dabber off to the side so that it is not exposed to more oil. Tap the light several times against the side of the bong to lubricate the stone.

Answer format: ending1/ending2/ending3/ending4