<http://webisa.webdatacommons.org/prov/449648234>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/427129747> .
<http://webisa.webdatacommons.org/427129747>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/427129747>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<algaecal.com> .
<http://webisa.webdatacommons.org/427129747>	<http://www.w3.org/ns/prov#value>	"In light of the abundance of science supporting silicon why do calcium supplements not include silica or other trace minerals?" .