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 a server or x_2 will not climb a mountain. For all x_2, if x_2 plays squash, then x_2 is climbing a mountain. There is at least one x_2 for which x_2 will drink water if and only if x_2 is a server.
For all x_2, if x_2 climbs a mountain, then x_2 is a server. There is at least one x_2 for which if x_2 drinks water, then x_2 is a server. There is at least one x_2 for which if x_2 were a server, then x_2 is drinking water.