What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_14, x_14 is not bored. For all x_14, x_14 will drive a car if and only if x_14 is a mechanic. For all x_14, if x_14 drives a car, then x_14 is not a carpenter. For all x_14, x_14 is bored.
Since the premises are contradictory, we can infer anything from them.