What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_3, if x_3 makes tea, then x_3 is a taxi driver. For all x_3, if x_3 were a janitor, then x_3 is a taxi driver. For all x_3, x_3 is a janitor. There is at least one x_3 for which if x_3 works, then x_3 is making tea.
For all x_3, x_3 is a taxi driver. There is at least one x_3 for which if x_3 works, then x_3 is a taxi driver.