<http://webisa.webdatacommons.org/31516998>	<http://www.w3.org/ns/prov#value>	"Gravel and crushed rock are the cheapest aggregates, however prices and colours can vary." .
<http://webisa.webdatacommons.org/prov/290264735>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/31516998> .
<http://webisa.webdatacommons.org/31516998>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/31516998>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .
<http://webisa.webdatacommons.org/prov/424921159>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/31516998> .