What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 is not excited. For all x_7, x_7 is excited if and only if x_7 is a bartender. For all x_7, x_7 will work. For all x_7, x_7 is a bartender or x_7 is a nurse.
For all x_7, if x_7 were excited, then x_7 is a bartender. For all x_7, if x_7 were a bartender, then x_7 is excited. For all x_7, x_7 is not a bartender.