<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://creativecommons.org/ns#attributionURL> <http://www.freebase.com/view/en/narcotic_analgesics>.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://rdf.freebase.com/ns/type.object.key> _:dcBKRRDn105.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://www.w3.org/1999/xhtml/vocab#license> <http://creativecommons.org/licenses/by/3.0/>.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://rdf.freebase.com/ns/medicine.drug_class>.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://rdf.freebase.com/ns/common.topic>.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://rdf.freebase.com/ns/type.object.name> "Narcotic analgesics"@en.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://rdf.freebase.com/ns/medicine.drug_class.drugs> <http://rdf.freebase.com/ns/en.methadone_hydrochloride>.
<http://rdf.freebase.com/ns/en.narcotic_analgesics> <http://creativecommons.org/ns#attributionName> "Source: Freebase - The World's database".
_:dcBKRRDn105 <http://rdf.freebase.com/ns/type.key.namespace> <http://rdf.freebase.com/ns/en>.
_:dcBKRRDn105 <http://rdf.freebase.com/ns/type.value.value> "narcotic_analgesics".