<http://webisa.webdatacommons.org/prov/123823391>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/391886290> .
<http://webisa.webdatacommons.org/391886290>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/391886290>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<secinfo.com> .
<http://webisa.webdatacommons.org/391886290>	<http://www.w3.org/ns/prov#value>	"ratio needed to form the desired product characteristics, silica and other glass" .