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 soldier, then x_12 is cooking. For all x_12, x_12 is a soldier or x_12 will not cook. If Elisabeth were a soldier, then Jessica is sad.
For all x_12, if x_12 cooks, then x_12 is a soldier.