What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, x_4 is not an electrician or x_4 is a writer. For all x_4, if x_4 were a writer, then x_4 is an artist. There is at least one x_4 for which x_4 is an electrician. For all x_4, if x_4 were bored, then x_4 is an artist.
Nothing can be inferred from these premises.