Consider the following premises. For all x_7, if x_7 were a nurse, then x_7 is cooking. For all x_7, if x_7 were a bartender, then x_7 is a nurse. For all x_7, x_7 will not cook or x_7 will listen to a song. For all x_7, if x_7 sleeps, then x_7 is cooking. For all x_7, x_7 will sleep or x_7 is a bartender. Can we infer the following from them? For all x_7, x_7 will take a plane or x_7 will listen to a song.
 From the fact that for all x_7, if x_7 were a bartender, then x_7 is a nurse, and that for all x_7, if x_7 were a nurse, then x_7 is cooking we can infer that for all x_7, if x_7 were a bartender, then x_7 is cooking. From the fact that for all x_7, if x_7 sleeps, then x_7 is cooking, that for all x_7, if x_7 were a bartender, then x_7 is cooking, and that for all x_7, x_7 will sleep or x_7 is a bartender we can infer that for all x_7, x_7 will cook. From the fact that for all x_7, x_7 will cook we can infer that for all x_7, x_7 will cook or x_7 will take a plane. Finally, from the fact that for all x_7, x_7 will cook or x_7 will take a plane, and that for all x_7, x_7 will not cook or x_7 will listen to a song we can infer that for all x_7, x_7 will take a plane or x_7 will listen to a song. Therefore, the answer is yes.