Please choose the correct ending to complete the given sentence: Brushing teeth: After, the person tap again the the chest, put toothpaste on the brush and brush the dog's teeth. when the person finish

Ending1: cleaning the new teeth, the dog opens his mouth and spits the toothpaste. Ending2: to brush, she kiss the dog. Ending3: brushing the dog the stomach gets rotates and gets purple like they have a stomach impulse to go outside. Ending4: , the dog lies on the floor and the person brush it's teeth.

Answer format: ending1/ending2/ending3/ending4