PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Methadone is an addictive substance ??? the longer you a??? More:http://wiki.answers.com/Q/What_is_the_main_drawback_in_methadone_treatment_for_a_heroin_addict
http://www.w3.org/ns/prov#wasQuotedFrom
  • medicalquestionsanswers.org