About: http://webisa.webdatacommons.org/48716458

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	Magnesium, an essential element, is found in dark, leafy vegetables such as spinach and in some fruits.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org