What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_9 for which x_9 will listen to a song if and only if x_9 will make tea. For all x_9, x_9 will make tea or x_9 will not listen to a song.
For all x_9, if x_9 listens to a song, then x_9 is making tea. There is at least one x_9 for which if x_9 listens to a song, then x_9 is making tea. There is at least one x_9 for which if x_9 makes tea, then x_9 is listening to a song.