What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? David is running. For all x_14, if x_14 were a cashier, then x_14 is playing a game. Susan is a cashier.
David is running and Susan is a cashier. Susan is a cashier and David is running. There is at least one x for which x is a cashier.