Consider the following premises. For all x_11, x_11 will play tennis and x_11 will work. David is a sailor. Can we infer the following from them? Elisabeth is playing tennis and David is a sailor.
 From the fact that for all x_11, x_11 will play tennis and x_11 will work we can infer that Elisabeth is playing tennis and Elisabeth is working. From the fact that Elisabeth is playing tennis and Elisabeth is working we can infer that Elisabeth is playing tennis. Finally, from the fact that Elisabeth is playing tennis, and that David is a sailor we can infer that Elisabeth is playing tennis and David is a sailor. Therefore, the answer is yes.