<http://webisa.webdatacommons.org/447737453>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/297402816>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/447737453> .
<http://webisa.webdatacommons.org/447737453>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/61168596>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/447737453> .
<http://webisa.webdatacommons.org/447737453>	<http://www.w3.org/ns/prov#value>	"Optical element or light-transition means 60 is of optically clear material, and may be of such material as optical grade acrylic or glass material." .