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 18 · column 5 of 6 · from the scan, no model involved

Dr. Katherine B. Gray, DVtvT Dr. Leslie Kabfleisch, DVM ,
^ Dr. Michelle Price, DVM !
75.5%