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, x_6 will not take a plane or x_6 will make tea. There is at least one x_6 for which if x_6 drives a car, then x_6 is working. For all x_6, x_6 will work or x_6 will not make tea. For all x_6, x_6 will take a plane or x_6 will drive a car.
For all x_6, x_6 will drive a car or x_6 will make tea. For all x_6, if x_6 makes tea, then x_6 is working.