About: http://webisa.webdatacommons.org/81735477

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 addition, patent medicines often contained dangerous levels of alcohol, opium, and other narcotics, potentially addictive and deadly ingredients that were not revealed to the consumer.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com