Consider the following premises. There is at least one x_4 for which x_4 will sleep. For all x_4, if x_4 goes running, then x_4 is an artist. For all x_4, if x_4 were an artist, then x_4 is not sleeping. Can we infer the following from them? There is at least one x_4 for which x_4 will not go running.
 From the fact that for all x_4, if x_4 were an artist, then x_4 is not sleeping, and that there is at least one x_4 for which x_4 will sleep we can infer that there is at least one x_4 for which x_4 is not an artist. Finally, from the fact that for all x_4, if x_4 goes running, then x_4 is an artist, and that there is at least one x_4 for which x_4 is not an artist we can infer that there is at least one x_4 for which x_4 will not go running. Therefore, the answer is yes.