What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_7 for which x_7 is a writer or x_7 will drive a car. For all x_7, if x_7 plays squash, then x_7 is making tea. For all x_7, x_7 is not a writer or x_7 will play squash. For all x_7, x_7 will make tea if and only if x_7 will drive a car.
There is at least one x_7 for which x_7 will drive a car or x_7 will play squash. For all x_7, if x_7 makes tea, then x_7 is driving a car. For all x_7, if x_7 drives a car, then x_7 is making tea.