What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x, if x were an astronaut, then x is a bartender. There is at least one x for which if x were a cashier, then x is making tea. For all x, if x were a bartender, then x is listening to a song. For all x, x will make tea if and only if x is an astronaut.
For all x, if x were an astronaut, then x is listening to a song. For all x, if x makes tea, then x is an astronaut. For all x, if x were an astronaut, then x is making tea.