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_7 for which x_7 is a sailor or x_7 will go running. For all x_7, x_7 is not a sailor. For all x_7, x_7 will not go running.
Since the premises are contradictory, we can infer anything from them.