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 is a nurse or x_8 is rich. For all x_8, x_8 is not a nurse or x_8 will play squash. For all x_8, x_8 will not play squash. For all x_8, x_8 is not rich or x_8 will listen to a song.
For all x_8, x_8 is rich or x_8 will play squash.