About: http://webisa.webdatacommons.org/422035231

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In the United States it has since become associated with opioids, commonly morphine and heroin and their derivatives, such as hydrocodone.
http://www.w3.org/ns/prov#wasQuotedFrom	patterico.com