What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_10, if x_10 sleeps, then x_10 is drinking water. There is at least one x_10 for which if x_10 drinks water, then x_10 is sleeping. For all x_10, x_10 will drink water or x_10 is an office clerk. For all x_10, x_10 will not sleep.
There is at least one x_10 for which x_10 will not drink water. There is at least one x_10 for which x_10 will drink water if and only if x_10 will sleep. There is at least one x_10 for which x_10 will sleep if and only if x_10 will drink water.