What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 is a cashier. There is at least one x_5 for which if x_5 were a writer, then x_5 is not a cashier. For all x_5, x_5 is a bartender.
There is at least one x_5 for which x_5 is not a writer. For all x_5, x_5 is a cashier and x_5 is a bartender. For all x_5, x_5 is a bartender and x_5 is a cashier.