<http://webisa.webdatacommons.org/301028920>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<straightdope.com> .
<http://webisa.webdatacommons.org/301028920>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/98581958>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/301028920> .
<http://webisa.webdatacommons.org/301028920>	<http://www.w3.org/ns/prov#value>	"Silica is a chemical." .