What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Michael were a bartender, then Charles is drinking water. Charles is drinking water if and only if it is windy. Michael is a bartender if and only if it is windy.
If Charles drinks water, then it is windy. If Michael were a bartender, then it is windy. If it is windy, then Charles is drinking water. If it is windy, then Michael is a bartender.