PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In reality, insomnia is the most common sleep complaint in the United States and about 30-40 percent of adults have insomnia symptoms in any given year!
http://www.w3.org/ns/prov#wasQuotedFrom
  • mercola.com