<http://webisa.webdatacommons.org/prov/222433861>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/4462749> .
<http://webisa.webdatacommons.org/4462749>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<carrollwater.com> .
<http://webisa.webdatacommons.org/4462749>	<http://www.w3.org/ns/prov#value>	"Radon may also be found in the building materials used to construct your home -- bricks, concrete blocks, concrete slabs, stone, and other products that are made of stone or contain soil or rocks." .
<http://webisa.webdatacommons.org/4462749>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .