<http://webisa.webdatacommons.org/prov/149912782>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/57531371> .
<http://webisa.webdatacommons.org/prov/495737928>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/57531371> .
<http://webisa.webdatacommons.org/57531371>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<gov.ab.ca> .
<http://webisa.webdatacommons.org/57531371>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/57531371>	<http://www.w3.org/ns/prov#value>	"Pellets, cubes and briquettes are very efficient forms of fuel but can be costly." .