What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_14, if x_14 takes a plane, then x_14 is drinking water. For all x_14, if x_14 drinks water, then x_14 is taking a plane. For all x_14, x_14 is not a politician. There is at least one x_14 for which x_14 is a politician if and only if x_14 will drink water. For all x_14, if x_14 takes a plane, then x_14 is drinking water.
For all x_14, x_14 will take a plane if and only if x_14 will drink water. For all x_14, x_14 will drink water if and only if x_14 will take a plane. For all x_14, x_14 will drink water if and only if x_14 will take a plane. For all x_14, x_14 will take a plane if and only if x_14 will drink water. There is at least one x_14 for which if x_14 were a politician, then x_14 is drinking water. There is at least one x_14 for which if x_14 drinks water, then x_14 is a politician. There is at least one x_14 for which x_14 will not drink water.