Consider the following premises. For all x_14, if x_14 drives a car, then x_14 is working. William is a nurse or Karen is driving a car. If William were a nurse, then Karen is working. Can we infer the following from them? Karen is not working.
 From the fact that for all x_14, if x_14 drives a car, then x_14 is working we can infer that if Karen drives a car, then Karen is working. Finally, from the fact that if William were a nurse, then Karen is working, that if Karen drives a car, then Karen is working, and that William is a nurse or Karen is driving a car we can infer that Karen is working, which contradicts that Karen is not working. Therefore, the answer is no.