What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, if x_7 listens to a song, then x_7 is reading a book. For all x_7, x_7 is not fast or x_7 will take a plane. For all x_7, if x_7 were a server, then x_7 is listening to a song. For all x_7, x_7 is fast or x_7 is a server. For all x_7, if x_7 takes a plane, then x_7 is reading a book.
For all x_7, if x_7 were a server, then x_7 is reading a book. For all x_7, x_7 is a server or x_7 will take a plane.