What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, if x_4 climbs a mountain, then x_4 is driving a car. Karen is climbing a mountain. Patricia is poor.
Karen is climbing a mountain and Patricia is poor. Patricia is poor and Karen is climbing a mountain. There is at least one x for which x will climb a mountain.