What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 will sleep if and only if x_5 will play tennis. For all x_5, x_5 will not play squash. For all x_5, x_5 will play tennis if and only if x_5 will read a book. For all x_5, if x_5 reads a book, then x_5 is playing squash.
For all x_5, x_5 will not read a book. For all x_5, if x_5 sleeps, then x_5 is playing tennis. For all x_5, if x_5 plays tennis, then x_5 is reading a book. For all x_5, if x_5 plays tennis, then x_5 is sleeping. For all x_5, if x_5 reads a book, then x_5 is playing tennis.