What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_22, x_22 is sad if and only if x_22 is a soldier. There is at least one x_22 for which x_22 is an office clerk or x_22 is a carpenter. For all x_22, if x_22 were a carpenter, then x_22 is a soldier. For all x_22, x_22 is not an office clerk.
There is at least one x_22 for which x_22 is a carpenter. For all x_22, if x_22 were sad, then x_22 is a soldier. For all x_22, if x_22 were a soldier, then x_22 is sad.