Consider the following premises. There is at least one z for which if z were a janitor, then z is a cashier. For all z, if z were an electrician, then z is sleeping. For all z, z will play tennis or z will not sleep. For all z, if z were a cashier, then z is an electrician. Can we infer the following from them? For all z, the fact that z were a janitor does not imply that z is playing tennis.
That contradicts the premises. Therefore the answer is no.