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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:951759
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en.wikipedia.org/wiki/Greenport,_New_York (7 Jun 2010)
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en.wikipedia.org/wiki/Greenport,_Suffolk_County,_New_York (25 Jul 2010)
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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:2390871