What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, if x_5 were fast, then x_5 is playing squash. For all x_5, x_5 will climb a mountain if and only if x_5 will play squash. There is at least one x_5 for which if x_5 drinks water, then x_5 is fast.
There is at least one x_5 for which if x_5 drinks water, then x_5 is playing squash. For all x_5, if x_5 climbs a mountain, then x_5 is playing squash. For all x_5, if x_5 plays squash, then x_5 is climbing a mountain.