((machine lever fixed to woman's head back:2)), ((machine with lever pulls head back strongly and then pushes it forward:2)), ((only machine lever with head slowly moves strongly back and forth with force:2)), ((large amplitude of motion of lever with head:1.7), (viewer's camera do not move:1.5), (woman keeps her mouth open very wide all time:1.7), (woman sticks out her very long very flat tongue hanging down all time:1.5), (eyes open))