<http://webisa.webdatacommons.org/prov/267591569>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/133254626> .
<http://webisa.webdatacommons.org/prov/390502449>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/133254626> .
<http://webisa.webdatacommons.org/133254626>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/133254626>	<http://www.w3.org/ns/prov#value>	"For example, clays like montmorillonite may be mined with a naturally occurring cation such as sodium or calcium." .
<http://webisa.webdatacommons.org/133254626>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .