<http://webisa.webdatacommons.org/prov/64015436>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/316982778> .
<http://webisa.webdatacommons.org/316982778>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<constructionmagnet.com> .
<http://webisa.webdatacommons.org/316982778>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/316982778>	<http://www.w3.org/ns/prov#value>	"A number of skylight manufacturers have moved beyond fiberglass to alternative materials including polycarbonate or polyvinyl chloride (PVC)." .