PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Good food sources of magnesium include green vegetables, such as spinach, beans and peas, nuts and seeds, and whole, unrefined grains.
http://www.w3.org/ns/prov#wasQuotedFrom
  • everydayhealth.com