What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If it is cloudy, then Richard is playing a game. If Richard plays a game, then it is raining. If it rains, then it is cloudy.
If it is cloudy, then it is raining. If Richard plays a game, then it is cloudy. If it rains, then Richard is playing a game.