PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Obstructive sleep apnea, a common disorder, occurs when the airway is blocked during sleep; many treatment options exist for sleep apnea, including the use of nasal decongestants, oral appliances, or positional therapy, and surgery may be required in some cases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.org