What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Susan were curious, then it is cloudy. For all y, y will play a game if and only if y is a janitor. If it is cloudy, then Karen is a janitor.
If Susan were curious, then Karen is a janitor. For all y, if y plays a game, then y is a janitor. For all y, if y were a janitor, then y is playing a game.