<http://webisa.webdatacommons.org/253121091>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<preservearticles.com> .
<http://webisa.webdatacommons.org/253121091>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/24667618>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/253121091> .
<http://webisa.webdatacommons.org/253121091>	<http://www.w3.org/ns/prov#value>	"Hence, with the help of fossils, a geologist while establishing the age of the rocks of the area can locate fresh deposits of coal, petroleum and other useful rocks and minerals." .