What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_11, if x_11 drives a car, then x_11 is an electrician. For all x_11, if x_11 listens to a song, then x_11 is an electrician. For all x_11, x_11 will work or x_11 will play tennis. There is at least one x_11 for which x_11 will not work. For all x_11, x_11 will listen to a song or x_11 will drive a car.
There is at least one x_11 for which x_11 will play tennis. For all x_11, x_11 is an electrician.