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, x_12 will drive a car or x_12 is a bartender. For all x_12, if x_12 were a soldier, then x_12 is a taxi driver. For all x_12, x_12 is a soldier or x_12 will take a plane. There is at least one x_12 for which if x_12 drives a car, then x_12 is not a taxi driver. For all x_12, if x_12 takes a plane, then x_12 is a taxi driver.
For all x_12, x_12 is a taxi driver.