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<http://webisa.webdatacommons.org/prov/472243787>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/91903666> .
<http://webisa.webdatacommons.org/91903666>	<http://www.w3.org/ns/prov#value>	"Vitamin A is an important nutrient yet there is much confusion surrounding its appropriate form, dosage and source." .
<http://webisa.webdatacommons.org/91903666>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<earthlink.net> .