PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Among the most common sleep disorders are insomnia, sleep apnea, restless legs syndrome, and narcolepsy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nih.gov