What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_3, x_3 will sleep and x_3 will take a plane. There is at least one x_3 for which if x_3 sleeps, then x_3 is drinking water.
For all x_3, x_3 will sleep. For all x_3, x_3 will take a plane.