PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Dr. Trattler also took issue with the commonly held belief that thin corneas are a risk factor for ectasia. ???Pundits suggest that a cornea that is beyond 2 standard deviations of average is ???abnormal,?????? he said.
http://www.w3.org/ns/prov#wasQuotedFrom
  • aao.org