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 is fast. For all x_7, x_7 will listen to a song or x_7 is not fast. There is at least one x_7 for which if x_7 listens to a song, then x_7 is a soldier.
For all x_7, if x_7 were fast, then x_7 is listening to a song.