What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, if x_6 were an office clerk, then x_6 is a taxi driver. For all x_6, if x_6 were a scientist, then x_6 is an office clerk. There is at least one x_6 for which if x_6 were a taxi driver, then x_6 is a server. For all x_6, x_6 is a scientist.
For all x_6, x_6 is an office clerk. For all x_6, if x_6 were a scientist, then x_6 is a taxi driver. There is at least one x_6 for which if x_6 were an office clerk, then x_6 is a server.