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 not take a plane. For all y, y is excited if and only if y will take a plane. For all y, y is excited or y is not a poet. There is at least one y for which if y were excited, then y is making tea. For all y, if y makes tea, then y is a poet.
There is at least one y for which if y were excited, then y is a poet. For all y, if y were a poet, then y is excited. For all y, if y were excited, then y is taking a plane. For all y, if y takes a plane, then y is excited. For all y, y is not excited.