What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, if x_8 reads a book, then x_8 is drinking water. For all x_8, if x_8 drinks water, then x_8 is sleeping. For all x_8, x_8 will read a book or x_8 is sad. For all x_8, if x_8 were sad, then x_8 is drinking water.
For all x_8, if x_8 reads a book, then x_8 is sleeping. For all x_8, if x_8 were sad, then x_8 is sleeping. For all x_8, x_8 will drink water.