What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_13, if x_13 takes a plane, then x_13 is drinking water. For all x_13, if x_13 were sad, then x_13 is drinking water. For all x_13, if x_13 were excited, then x_13 is taking a plane. There is at least one x_13 for which x_13 is excited and x_13 will listen to a song.
For all x_13, if x_13 were excited, then x_13 is drinking water. There is at least one x_13 for which x_13 is excited. There is at least one x_13 for which x_13 will listen to a song.