What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 is a carpenter. For all x_5, if x_5 were a carpenter, then x_5 is a sailor. For all x_5, if x_5 cooks, then x_5 is a mechanic. For all x_5, if x_5 were a sailor, then x_5 is cooking.
For all x_5, x_5 is a sailor. For all x_5, if x_5 were a carpenter, then x_5 is cooking. For all x_5, if x_5 were a sailor, then x_5 is a mechanic.