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 were excited, then x_10 is a taxi driver. For all x_10, x_10 is not a taxi driver. For all x_10, if x_10 were bored, then x_10 is excited. For all x_10, x_10 is bored if and only if x_10 is excited.
For all x_10, x_10 is not excited. For all x_10, if x_10 were bored, then x_10 is a taxi driver. For all x_10, if x_10 were bored, then x_10 is excited. For all x_10, if x_10 were excited, then x_10 is bored.