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 x_12 for which x_12 is a police officer or x_12 is not a politician. For all x_12, if x_12 were a bartender, then x_12 is a police officer. For all x_12, x_12 is a politician or x_12 is a bartender.
There is at least one x_12 for which if x_12 were a politician, then x_12 is a police officer.