Consider the following premises. For all x_7, x_7 will listen to a song or x_7 is not a taxi driver. For all x_7, x_7 is a taxi driver and x_7 is curious. Can we infer the following from them? There is at least one x_7 for which x_7 will not listen to a song.
 From the fact that for all x_7, x_7 is a taxi driver and x_7 is curious we can infer that for all x_7, x_7 is a taxi driver. From the fact that for all x_7, x_7 will listen to a song or x_7 is not a taxi driver we can infer that for all x_7, if x_7 were a taxi driver, then x_7 is listening to a song. Finally, from the fact that for all x_7, if x_7 were a taxi driver, then x_7 is listening to a song, and that for all x_7, x_7 is a taxi driver we can infer that for all x_7, x_7 will listen to a song, which contradicts that There is at least one x_7 for which x_7 will not listen to a song. Therefore, the answer is no.