What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all x_2, x_2 is a police officer or x_2 is not curious. For all x_2, x_2 is curious or x_2 is a nurse. For all x_2, if x_2 were a nurse, then x_2 is a police officer.
For all x_2, if x_2 were curious, then x_2 is a police officer can be inferred via the universal rewriting rule.