What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 will listen to a song if and only if x_7 will go running. For all x_7, if x_7 goes running, then x_7 is a cashier. For all x_7, if x_7 were a cashier, then x_7 is playing tennis.
For all x_7, if x_7 goes running, then x_7 is playing tennis. For all x_7, if x_7 listens to a song, then x_7 is running. For all x_7, if x_7 goes running, then x_7 is listening to a song.