PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is well established that intravenous drug users are at high risk for HIV and AIDS. In addition to disease that is spread by HIV-contaminated needles, drugs such as morphine and heroin ??? classified as opiates ??? have been shown to stimulate HIV replication in human immune cells.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com