<http://webisa.webdatacommons.org/48878745>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<themountainhomeguide.org> .
<http://webisa.webdatacommons.org/48878745>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/507289563>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/48878745> .
<http://webisa.webdatacommons.org/48878745>	<http://www.w3.org/ns/prov#value>	"If surface water enters a well or spring, it can introduce microorganisms such as protozoans, bacteria, and viruses into the water supply." .