What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x, if x makes tea, then x is a lawyer. There is at least one x for which x will not make tea. For all x, x will make tea or x will not take a plane. For all x, if x were a lawyer, then x is taking a plane.
For all x, if x makes tea, then x is taking a plane. For all x, if x takes a plane, then x is making tea.