What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_12, if x_12 sleeps, then x_12 is listening to a song. For all x_12, x_12 will drink water if and only if x_12 will sleep. If Patricia listens to a song, then it is late.
For all x_12, if x_12 drinks water, then x_12 is sleeping. For all x_12, if x_12 sleeps, then x_12 is drinking water.