<http://webisa.webdatacommons.org/46564045>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<charlesandhudson.com> .
<http://webisa.webdatacommons.org/prov/186027620>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/46564045> .
<http://webisa.webdatacommons.org/46564045>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/46564045>	<http://www.w3.org/ns/prov#value>	"It occurs when water moving through a sidewalk or other structure brings salts to the surface that are not commonly bound as part of the cement stone." .