What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_2, if y_2 were a lawyer, then y_2 is cooking. For all y_2, if y_2 takes a plane, then y_2 is cooking. There is at least one y_2 for which y_2 will not take a plane. For all y_2, if y_2 cooks, then y_2 is taking a plane.
There is at least one y_2 for which y_2 will not cook. For all y_2, if y_2 were a lawyer, then y_2 is taking a plane. For all y_2, y_2 will take a plane if and only if y_2 will cook. For all y_2, y_2 will cook if and only if y_2 will take a plane.