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"Four hundred previously loved toilets are transformed (ground into porcelain bits and mixed with gravel and asphalt) into a new 'poticrete' sidewalk in Bellingham, Wash."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/recycling/blogs/follow-the-poticrete-road-city-sidewalk-made-from-crushed-commodes>