What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_7 for which x_7 will play tennis. For all x_7, if x_7 plays tennis, then x_7 is an office clerk. For all x_7, x_7 is an office clerk if and only if x_7 will sleep.
There is at least one x_7 for which x_7 is an office clerk. For all x_7, if x_7 were an office clerk, then x_7 is sleeping. For all x_7, if x_7 sleeps, then x_7 is an office clerk.