What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, if x_6 works, then x_6 is listening to a song. For all x_6, if x_6 works, then x_6 is a scientist. For all x_6, if x_6 takes a plane, then x_6 is working. For all x_6, if x_6 were a scientist, then x_6 is taking a plane. For all x_6, x_6 will not listen to a song.
For all x_6, x_6 will not work. For all x_6, if x_6 works, then x_6 is taking a plane. For all x_6, if x_6 takes a plane, then x_6 is listening to a song. For all x_6, if x_6 takes a plane, then x_6 is a scientist. For all x_6, if x_6 were a scientist, then x_6 is working.