Consider the following premises. If Barbara were a nurse, then Barbara is an electrician. It is windy if and only if Barbara is an electrician. It is not sunny or it is windy. Jennifer is not making tea or Barbara is a nurse. It is sunny or Jennifer is making tea. Can we infer the following from them? Barbara is an electrician.
 From the fact that it is windy if and only if Barbara is an electrician we can infer that if it is windy, then Barbara is an electrician. From the fact that it is sunny or Jennifer is making tea, and that it is not sunny or it is windy we can infer that Jennifer is making tea or it is windy. From the fact that Jennifer is making tea or it is windy, and that Jennifer is not making tea or Barbara is a nurse we can infer that it is windy or Barbara is a nurse. Finally, from the fact that if it is windy, then Barbara is an electrician, that if Barbara were a nurse, then Barbara is an electrician, and that it is windy or Barbara is a nurse we can infer that Barbara is an electrician. Therefore, the answer is yes.