PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Background: Exercise has been encouraged during pregnancy in order to reduce undesirable outcomes such as pre-eclampsia, excessive weight gain and diabetes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • clinicaltrials.gov