<http://webisa.webdatacommons.org/452125568>	<http://www.w3.org/ns/prov#value>	"Fillers such as sand and gravel and re-enforcing material such as steel rod may be added to the cement." .
<http://webisa.webdatacommons.org/prov/303540685>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/452125568> .
<http://webisa.webdatacommons.org/prov/385713075>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/452125568> .
<http://webisa.webdatacommons.org/452125568>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/452125568>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .