What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, x_8 will not listen to a song. For all x_8, x_8 is an astronaut if and only if x_8 will listen to a song. For all x_8, if x_8 were a poet, then x_8 is a bartender. For all x_8, x_8 is a bartender if and only if x_8 is an astronaut.
For all x_8, if x_8 were an astronaut, then x_8 is listening to a song. For all x_8, if x_8 were a bartender, then x_8 is an astronaut. For all x_8, if x_8 listens to a song, then x_8 is an astronaut. For all x_8, if x_8 were an astronaut, then x_8 is a bartender. For all x_8, x_8 is not an astronaut.