What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? James is not a mechanic. It is cloudy if and only if it is windy. James is a mechanic if and only if it is cloudy.
If it is cloudy, then it is windy. If James were a mechanic, then it is cloudy. If it is windy, then it is cloudy. If it is cloudy, then James is a mechanic. It is not cloudy.