About: http://webisa.webdatacommons.org/31587428

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	Green vegetables such as spinach are good sources of magnesium because the center of the chlorophyll molecule (which gives green vegetables their color) contains magnesium.
http://www.w3.org/ns/prov#wasQuotedFrom	algaecal.com