Consider the following premises. For all x_7, x_7 is not a musician. For all x_7, x_7 is not a janitor or x_7 is a server. There is at least one x_7 for which x_7 is a musician or x_7 is a janitor. Can we infer the following from them? There is at least one x_7 for which x_7 will read a book or x_7 is a server.
 From the fact that there is at least one x_7 for which x_7 is a musician or x_7 is a janitor, and that for all x_7, x_7 is not a musician we can infer that there is at least one x_7 for which x_7 is a janitor. From the fact that there is at least one x_7 for which x_7 is a janitor we can infer that there is at least one x_7 for which x_7 is a janitor or x_7 will read a book. Finally, from the fact that there is at least one x_7 for which x_7 is a janitor or x_7 will read a book, and that for all x_7, x_7 is not a janitor or x_7 is a server we can infer that there is at least one x_7 for which x_7 will read a book or x_7 is a server. Therefore, the answer is yes.