What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, x_4 will sleep or x_4 will play a game. For all x_4, x_4 will not sleep or x_4 will drink water. For all x_4, if x_4 drinks water, then x_4 is fast. For all x_4, x_4 will not play a game or x_4 will listen to a song. There is at least one x_4 for which if x_4 listens to a song, then x_4 is fast.
For all x_4, x_4 will play a game or x_4 will drink water.