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 12 · column 4 of 7 · from the scan, no model involved

Proper landscaping reduces nitrate leaching from the soil into the water supply. Plants also reduce surface water runoff, keep phosphorus and other pollutants our of our waterways and prevent septic system overload.
Proper landscaping reduces soil erosion. A dense cover of plants and mulch holds soil in place, keeping sediment our of lakes, streams, storm drains, and roads; and reducing flooding, mud slides, and dust storms.
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