What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_10, x_10 will listen to a song. For all x_10, if x_10 were bored, then x_10 is not sad. There is at least one x_10 for which x_10 will not listen to a song.
Nothing can be inferred from these premises.