What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_20, x_20 is not curious. For all x_20, if x_20 sleeps, then x_20 is not working. For all x_20, x_20 is curious or x_20 will work. If William were a musician, then James is sleeping.
For all x_20, x_20 will work.