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 is not excited or y will read a book. For all y, y is a nurse. For all y, if y takes a plane, then y is a cashier. For all y, y is excited or y will take a plane. For all y, y is a cashier or y will not read a book.
For all y, y will take a plane or y will read a book. For all y, if y reads a book, then y is a cashier.