About: http://webisa.webdatacommons.org/127175734

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	Opium is a naturally occurring substance that is extracted from the seedpod of the opium poppy.First synthesized in 1874, heroin was first created as a non-addictive alternative to morphine.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com