What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_12, if x_12 were a carpenter, then x_12 is playing a game. For all x_12, x_12 is not happy. There is at least one x_12 for which x_12 will play a game or x_12 is not a server. For all x_12, if x_12 were happy, then x_12 is a carpenter. For all x_12, if x_12 plays a game, then x_12 is happy.
For all x_12, x_12 will not play a game. For all x_12, if x_12 were a carpenter, then x_12 is happy. For all x_12, if x_12 were happy, then x_12 is playing a game. For all x_12, if x_12 plays a game, then x_12 is a carpenter. There is at least one x_12 for which if x_12 were a server, then x_12 is playing a game.