What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If it is windy, then Patricia is a cashier. If John plays tennis, then it is windy. If Patricia were a cashier, then John is playing tennis.
If it is windy, then John is playing tennis. If John plays tennis, then Patricia is a cashier. If Patricia were a cashier, then it is windy.