What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_1: ~S(z_1) or U_1(z_1). forall z_1: S(z_1) or P(z_1). forall z_1: T(z_1). forall z_1: ~P(z_1).
forall z_1: P(z_1) or U_1(z_1).