About: http://webisa.webdatacommons.org/233498405

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	The Topic: In the 19th century, narcotics such as opium and morphine, available in every hospital and drugstore, were widely used to treat every condition--from a persistent cough to heart disease and hemorrhoids.
http://www.w3.org/ns/prov#wasQuotedFrom	bookmarksmagazine.com