Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 11 · column 3 of 5 · from the scan, no model involved

family if they have chronic kidney disease and need a kidney transplant or dialysis.
Medicare is administered by the Social Security Administration, an agency of the U.S. Department of
97.6%