What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x, if x were an astronaut, then x is driving a car. For all x, if x drinks water, then x is driving a car. For all x, if x drives a car, then x is an astronaut. For all x, x is not an astronaut. There is at least one x for which if x drives a car, then x is drinking water.
For all x, x will not drive a car. For all x, if x drinks water, then x is an astronaut. There is at least one x for which if x were an astronaut, then x is drinking water. For all x, x is an astronaut if and only if x will drive a car. For all x, x will drive a car if and only if x is an astronaut. There is at least one x for which x will drive a car if and only if x will drink water. There is at least one x for which x will drink water if and only if x will drive a car.