Consider the following premises. Susan is not excited or David is reading a book. For all x_6, x_6 will work. For all x_6, if x_6 works, then x_6 is excited. Can we infer the following from them? Susan is a writer or David is reading a book.
 From the fact that for all x_6, if x_6 works, then x_6 is excited, and that for all x_6, x_6 will work we can infer that for all x_6, x_6 is excited. From the fact that for all x_6, x_6 is excited we can infer that for all x_6, x_6 is excited or x_6 is a writer. From the fact that for all x_6, x_6 is excited or x_6 is a writer we can infer that Susan is excited or Susan is a writer. Finally, from the fact that Susan is excited or Susan is a writer, and that Susan is not excited or David is reading a book we can infer that Susan is a writer or David is reading a book. Therefore, the answer is yes.