What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_2, x_2 is not poor. There is at least one x_2 for which x_2 is an office clerk or x_2 will drink water. For all x_2, if x_2 were an office clerk, then x_2 is poor. For all x_2, if x_2 climbs a mountain, then x_2 is not drinking water.
For all x_2, x_2 is not an office clerk.