What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_7 for which x_7 will listen to a song. For all x_7, x_7 will take a plane. For all x_7, x_7 will take a plane if and only if x_7 is an artist.
There is at least one x_7 for which x_7 will listen to a song and x_7 will take a plane. There is at least one x_7 for which x_7 will take a plane and x_7 will listen to a song. For all x_7, if x_7 takes a plane, then x_7 is an artist. For all x_7, if x_7 were an artist, then x_7 is taking a plane.