About: http://webisa.webdatacommons.org/360608077

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 mostly found in the bones and gives them much of their hardness, whereas magnesium is found mainly in soft structures.
http://www.w3.org/ns/prov#wasQuotedFrom	nutritionalmagnesium.org