PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • CDC, FDA, the National Institutes of Health, and other federal agencies monitor vaccine safety and investigate any possible problems with the safety of vaccines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • vactruth.com