What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one z_2 for which z_2 will drink water if and only if z_2 is a lawyer. For all z_2, if z_2 drinks water, then z_2 is a lawyer.
There is at least one z_2 for which if z_2 drinks water, then z_2 is a lawyer. There is at least one z_2 for which if z_2 were a lawyer, then z_2 is drinking water.