What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, x_6 is not a mechanic or x_6 is a writer. For all x_6, x_6 will take a plane. For all x_6, x_6 is not a server. For all x_6, x_6 is a mechanic or x_6 is a server.
For all x_6, x_6 is a server or x_6 is a writer.