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 6 · column 2 of 5 · from the scan, no model involved

“Research into the causes and treatment of birth defects is moving along today at a pace few of us would have believed possible even a decade ago.”
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