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, x_10 will take a plane or x_10 will sleep. For all x_10, x_10 will not take a plane or x_10 will play tennis. For all x_10, x_10 will sleep if and only if x_10 will make tea. For all x_10, x_10 will not make tea.
For all x_10, x_10 will sleep or x_10 will play tennis. For all x_10, if x_10 sleeps, then x_10 is making tea. For all x_10, if x_10 makes tea, then x_10 is sleeping. For all x_10, x_10 will not sleep.