What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_16, x_16 will work if and only if x_16 will go running. For all x_16, x_16 is a taxi driver. For all x_16, if x_16 works, then x_16 is playing a game. For all x_16, if x_16 were a taxi driver, then x_16 is running. There is at least one x_16 for which if x_16 were happy, then x_16 is not playing a game.
For all x_16, x_16 will go running. For all x_16, if x_16 works, then x_16 is running. For all x_16, if x_16 goes running, then x_16 is working.