What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 is not curious. For all x_5, x_5 will listen to a song if and only if x_5 is sad. There is at least one x_5 for which x_5 is curious if and only if x_5 is sad.
For all x_5, if x_5 listens to a song, then x_5 is sad. There is at least one x_5 for which if x_5 were curious, then x_5 is sad. For all x_5, if x_5 were sad, then x_5 is listening to a song. There is at least one x_5 for which if x_5 were sad, then x_5 is curious. There is at least one x_5 for which x_5 is not sad.