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 3 · column 3 of 9 · from the scan, no model involved

Approaches that may be used also are various types of examination programs for credit, self-paced and selfdirected courses, independent study, media-centered courses and correspondence courses.
The primary goal of a college Extended Learning Center is to plan individual
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