<http://webisa.webdatacommons.org/271307607>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/271307607>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<naturalpedia.com> .
<http://webisa.webdatacommons.org/prov/44919709>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/271307607> .
<http://webisa.webdatacommons.org/271307607>	<http://www.w3.org/ns/prov#value>	"Calcium is a necessary nutrient." .