What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_12, if x_12 makes tea, then x_12 is an astronaut. For all x_12, if x_12 were excited, then x_12 is rich. For all x_12, x_12 is rich if and only if x_12 will take a plane. For all x_12, x_12 will not take a plane. For all x_12, x_12 is excited if and only if x_12 is an astronaut.
For all x_12, if x_12 were rich, then x_12 is taking a plane. For all x_12, if x_12 were excited, then x_12 is an astronaut. For all x_12, if x_12 takes a plane, then x_12 is rich. For all x_12, if x_12 were an astronaut, then x_12 is excited. For all x_12, x_12 is not rich.