About: http://webisa.webdatacommons.org/363306162

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Calcium is an essential constituent of bone and teeth, and required by the body for muscle contraction, blood clotting, and nerve impulse conduction.
http://www.w3.org/ns/prov#wasQuotedFrom	figur8.net