<http://webisa.webdatacommons.org/168706327>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<webvitamins.com> .
<http://webisa.webdatacommons.org/168706327>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/332390438>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/168706327> .
<http://webisa.webdatacommons.org/168706327>	<http://www.w3.org/ns/prov#value>	"Vitamin B12 is an essential nutrient, but one that is eventually depleted if dietary sources are inadequate or absorptionmechanisms are compromised." .