What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, x_6 is a police officer or x_6 is not a sailor. For all x_6, x_6 is an astronaut or x_6 is not a police officer.
For all x_6, if x_6 were a sailor, then x_6 is a police officer. For all x_6, if x_6 were a police officer, then x_6 is an astronaut.