Consider the following premises. For all x_8, x_8 is a musician and x_8 will drink water. For all x_8, x_8 will listen to a song. Can we infer the following from them? There is at least one x_8 for which neither x_8 will listen to a song nor x_8 is a janitor.
 From the fact that for all x_8, x_8 is a musician and x_8 will drink water we can infer that for all x_8, x_8 is a musician. From the fact that for all x_8, x_8 will listen to a song, and that for all x_8, x_8 is a musician we can infer that for all x_8, x_8 will listen to a song and x_8 is a musician. From the fact that for all x_8, x_8 will listen to a song and x_8 is a musician we can infer that for all x_8, x_8 will listen to a song. Finally, from the fact that for all x_8, x_8 will listen to a song we can infer that for all x_8, x_8 will listen to a song or x_8 is a janitor, which contradicts that There is at least one x_8 for which neither x_8 will listen to a song nor x_8 is a janitor. Therefore, the answer is no.