About: http://webisa.webdatacommons.org/404124392

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	Since you asked for a solution other than medicines, here is what helped me (your mileage may vary):
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com