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, x_11 will write a letter or x_11 will work. For all x_11, x_11 will listen to a song or x_11 will play squash. For all x_11, if x_11 plays squash, then x_11 is driving a car. For all x_11, x_11 will not write a letter. There is at least one x_11 for which if x_11 listens to a song, then x_11 is driving a car.
For all x_11, x_11 will work. There is at least one x_11 for which x_11 will drive a car.