What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_2 for which if x_2 were a cashier, then x_2 is working. For all x_2, if x_2 works, then x_2 is drinking water.
There is at least one x_2 for which if x_2 were a cashier, then x_2 is drinking water.