The sound vibrations cause the Stapes to move back and forth.
(The sound vibrations; cause; the Stapes to move back and forth) Context(The sound vibrations cause,List([0, 26))):(the Stapes; to move; back and forth)
The sound vibrations cause,List([0, 26))
The sound vibrations the Stapes
cause to move
the Stapes to move back and forth
back and forth