PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Not surprisingly, lack of sleep is caused mainly by factors that are more common later in life, such as breathing problems, illness and medications.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usda.gov