Consider the following premises. For all x_5, x_5 will listen to a song if and only if x_5 is excited. For all x_5, if x_5 were a scientist, then x_5 is reading a book. For all x_5, x_5 will not read a book. For all x_5, if x_5 listens to a song, then x_5 is a scientist. Can we infer the following from them? There is at least one x_5 for which x_5 is excited.
 From the fact that for all x_5, if x_5 were a scientist, then x_5 is reading a book, and that for all x_5, x_5 will not read a book we can infer that for all x_5, x_5 is not a scientist. From the fact that for all x_5, if x_5 listens to a song, then x_5 is a scientist, and that for all x_5, x_5 is not a scientist we can infer that for all x_5, x_5 will not listen to a song. Finally, from the fact that for all x_5, x_5 will listen to a song if and only if x_5 is excited, and that for all x_5, x_5 will not listen to a song we can infer that for all x_5, x_5 is not excited, which contradicts that There is at least one x_5 for which x_5 is excited. Therefore, the answer is no.