Input (grade 13): Only 41 when her husband became president, Sarah Polk outlived several of her successors: Margaret Taylor, Abigail Fillmore, Jane Pierce, Mary Todd Lincoln, Eliza Johnson and Lucy Webb Hayes.
Output (grade 8): Sarah Polk, as the First Lady of the United States, even outlived several of her successors. She lived longer than Margaret Taylor, Abigail Fillmore, Jane Pierce, Mary Todd Lincoln, Eliza McCardle Johnson and Lucy Webb Hayes.