What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x, if x takes a plane, then x is climbing a mountain. There is at least one x for which if x climbs a mountain, then x is excited. For all x, if x drinks water, then x is taking a plane. For all x, if x were excited, then x is taking a plane. For all x, if x takes a plane, then x is drinking water. For all x, x will not drink water.
For all x, x will not take a plane. For all x, if x drinks water, then x is climbing a mountain. For all x, if x were excited, then x is climbing a mountain. For all x, if x were excited, then x is drinking water. There is at least one x for which if x climbs a mountain, then x is taking a plane. There is at least one x for which if x takes a plane, then x is excited. For all x, x will drink water if and only if x will take a plane. For all x, x will take a plane if and only if x will drink water.