What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_15, x_15 is excited. For all x_15, x_15 will make tea or x_15 is not excited. For all x_15, x_15 will make tea if and only if x_15 will sleep.
For all x_15, if x_15 were excited, then x_15 is making tea. For all x_15, if x_15 makes tea, then x_15 is sleeping. For all x_15, if x_15 sleeps, then x_15 is making tea.