Consider the following premises. For all x_6, if x_6 were an office clerk, then x_6 is listening to a song. For all x_6, if x_6 were rich, then x_6 is listening to a song. For all x_6, x_6 is an office clerk or x_6 will not take a plane. There is at least one x_6 for which x_6 will take a plane or x_6 is rich. Can we infer the following from them? There is at least one x_6 for which x_6 will listen to a song.
 From the fact that for all x_6, x_6 is an office clerk or x_6 will not take a plane we can infer that for all x_6, if x_6 takes a plane, then x_6 is an office clerk. From the fact that for all x_6, if x_6 takes a plane, then x_6 is an office clerk, and that for all x_6, if x_6 were an office clerk, then x_6 is listening to a song we can infer that for all x_6, if x_6 takes a plane, then x_6 is listening to a song. Finally, from the fact that for all x_6, if x_6 takes a plane, then x_6 is listening to a song, that for all x_6, if x_6 were rich, then x_6 is listening to a song, and that there is at least one x_6 for which x_6 will take a plane or x_6 is rich we can infer that there is at least one x_6 for which x_6 will listen to a song. Therefore, the answer is yes.