What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_17, if x_17 climbs a mountain, then x_17 is taking a plane. For all x_17, x_17 will climb a mountain or x_17 is a bartender. For all x_17, if x_17 takes a plane, then x_17 is excited. For all x_18, x_18 is an electrician. For all x_17, if x_17 were a bartender, then x_17 is taking a plane.
For all x_17, if x_17 climbs a mountain, then x_17 is excited. For all x_17, if x_17 were a bartender, then x_17 is excited. For all x_17, x_17 will take a plane.