What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_3, if y_3 were a carpenter, then y_3 is a nurse. There is at least one y_3 for which if y_3 were a nurse, then y_3 is rich. For all y_3, if y_3 were a server, then y_3 is a carpenter. For all y_3, if y_3 were rich, then y_3 is a server.
For all y_3, if y_3 were a server, then y_3 is a nurse. For all y_3, if y_3 were rich, then y_3 is a carpenter. There is at least one y_3 for which if y_3 were a nurse, then y_3 is a server. There is at least one y_3 for which if y_3 were a carpenter, then y_3 is rich.