<http://webisa.webdatacommons.org/prov/50103621>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/273778773> .
<http://webisa.webdatacommons.org/273778773>	<http://www.w3.org/ns/prov#value>	"plastic and other non-metallic materials." .
<http://webisa.webdatacommons.org/273778773>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<rodbuilding.org> .
<http://webisa.webdatacommons.org/273778773>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .