<http://webisa.webdatacommons.org/198962291>	<http://www.w3.org/ns/prov#value>	"So, it is not unusual for materials such as granite to have some amount of radioactivity (emissions of alpha or beta particles or gamma rays)." .
<http://webisa.webdatacommons.org/198962291>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<europeanonyx.com> .
<http://webisa.webdatacommons.org/prov/49311354>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/198962291> .
<http://webisa.webdatacommons.org/198962291>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .