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_5 for which if x_5 were a taxi driver, then x_5 is excited. For all x_5, x_5 is a server. For all x_5, if x_5 were a server, then x_5 is poor. For all x_5, if x_5 were poor, then x_5 is a taxi driver.
For all x_5, x_5 is poor. For all x_5, if x_5 were a server, then x_5 is a taxi driver. There is at least one x_5 for which if x_5 were poor, then x_5 is excited.