What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, x_4 will take a plane or x_4 is excited. For all x_4, x_4 will not take a plane or x_4 will work. For all x_4, x_4 will not work. For all x_4, x_4 is not excited or x_4 will go running.
For all x_4, x_4 is excited or x_4 will work.