What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_2, if x_2 plays a game, then x_2 is running. For all x_2, if x_2 were a taxi driver, then x_2 is playing a game. For all x_2, if x_2 goes running, then x_2 is a taxi driver.
For all x_2, if x_2 plays a game, then x_2 is a taxi driver. For all x_2, if x_2 were a taxi driver, then x_2 is running. For all x_2, if x_2 goes running, then x_2 is playing a game.