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 6 of 9 · from the scan, no model involved
sprite come in cycles. Studies ,of tree rings, old water levels,' historical records, and reports of crop failures show large variations in rainfall but no clearly defined cycles.
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