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 works, then x_12 is a lawyer. For all x_12, if x_12 were a lawyer, then x_12 is an artist. There is at least one x_12 for which if x_12 works, then x_12 is an artist. For all x_12, if x_12 were an artist, then x_12 is working.
For all x_12, if x_12 works, then x_12 is an artist. For all x_12, if x_12 were a lawyer, then x_12 is working. For all x_12, if x_12 were an artist, then x_12 is a lawyer. There is at least one x_12 for which x_12 will work if and only if x_12 is an artist. There is at least one x_12 for which x_12 is an artist if and only if x_12 will work.