What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, x_8 will not listen to a song. For all x_8, if x_8 listens to a song, then x_8 is working. For all x_8, if x_8 works, then x_8 is listening to a song. There is at least one x_8 for which x_8 will work.
Since the premises are contradictory, we can infer anything from them.