<http://webisa.webdatacommons.org/prov/507604917>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/342887445> .
<http://webisa.webdatacommons.org/342887445>	<http://www.w3.org/ns/prov#value>	"E=k.&#963;-1/2.f-3/2 where E stands for the sonde error, ?? for the conductivity, f for the frequency, and k is a coefficient." .
<http://webisa.webdatacommons.org/342887445>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/604451>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/342887445> .
<http://webisa.webdatacommons.org/342887445>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.co.uk> .