Consider the following premises. For all z, z is a nurse and z will cook. For all x_2, x_2 is curious. Can we infer the following from them? There is at least one x_2 for which x_2 is curious and x_2 is a nurse.
 From the fact that for all z, z is a nurse and z will cook we can infer that for all z, z is a nurse. From the fact that for all z, z is a nurse we can infer that Richard is a nurse. From the fact that Richard is a nurse we can infer that there is at least one x_2 for which x_2 is a nurse. Finally, from the fact that for all x_2, x_2 is curious, and that there is at least one x_2 for which x_2 is a nurse we can infer that there is at least one x_2 for which x_2 is curious and x_2 is a nurse. Therefore, the answer is yes.