PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Other opioid painkillers, such as Oxycontin and Percocet, are already classified in that higher category.
http://www.w3.org/ns/prov#wasQuotedFrom
  • drugs.com