What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, if x_6 plays a game, then x_6 is running. For all x_6, if x_6 were sad, then x_6 is playing a game. For all x_6, x_6 is a soldier or x_6 is sad. For all x_6, if x_6 listens to a song, then x_6 is playing a game. For all x_6, x_6 is not a soldier or x_6 will listen to a song.
For all x_6, if x_6 were sad, then x_6 is running. For all x_6, if x_6 listens to a song, then x_6 is running. For all x_6, x_6 is sad or x_6 will listen to a song.