Consider the following premises. Elisabeth is fast if and only if Sarah is a nurse. Karen is listening to a song if and only if it is cold. For all x_14, x_14 is not fast. It is not cold. Can we infer the following from them? Karen is not listening to a song and Sarah is not a nurse.
 From the fact that Karen is listening to a song if and only if it is cold, and that it is not cold we can infer that Karen is not listening to a song. From the fact that for all x_14, x_14 is not fast we can infer that Elisabeth is not fast. From the fact that Elisabeth is fast if and only if Sarah is a nurse, and that Elisabeth is not fast we can infer that Sarah is not a nurse. Finally, from the fact that Karen is not listening to a song, and that Sarah is not a nurse we can infer that Karen is not listening to a song and Sarah is not a nurse. Therefore, the answer is yes.