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 is poor or x_10 is sad. For all x_10, x_10 will listen to a song if and only if x_10 is sad. For all x_10, x_10 will listen to a song or x_10 is not poor.
For all x_10, if x_10 were poor, then x_10 is listening to a song. For all x_10, if x_10 listens to a song, then x_10 is sad. For all x_10, if x_10 were sad, then x_10 is listening to a song.