What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, y will take a plane if and only if y will cook. If it rains, then Jennifer is taking a plane. It is raining.
Jennifer is taking a plane. For all y, if y takes a plane, then y is cooking. For all y, if y cooks, then y is taking a plane.