<http://webisa.webdatacommons.org/prov/94709233>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/71384334> .
<http://webisa.webdatacommons.org/71384334>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/71384334>	<http://www.w3.org/ns/prov#value>	"Certain metals, such as copper and zinc, are essential to pond life metabolism." .
<http://webisa.webdatacommons.org/71384334>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<petsupplies.com> .
<http://webisa.webdatacommons.org/prov/122776881>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/71384334> .