<http://webisa.webdatacommons.org/prov/318757733>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/181488834> .
<http://webisa.webdatacommons.org/prov/437806877>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/181488834> .
<http://webisa.webdatacommons.org/prov/224367108>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/181488834> .
<http://webisa.webdatacommons.org/181488834>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/181488834>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/339356714>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/181488834> .
<http://webisa.webdatacommons.org/181488834>	<http://www.w3.org/ns/prov#value>	"Prior to the present invention, the fixture box whether plastic or metal was anchored to a stud or joist by screws or nails before installing any finished wall material." .