<http://webisa.webdatacommons.org/prov/24682887>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/138643830> .
<http://webisa.webdatacommons.org/138643830>	<http://www.w3.org/ns/prov#value>	"Phosphorus, potassium and other trace elements in inorganic fertilizers are often mined from the earth." .
<http://webisa.webdatacommons.org/138643830>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sfgate.com> .
<http://webisa.webdatacommons.org/prov/220445227>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/138643830> .
<http://webisa.webdatacommons.org/138643830>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .