About: http://webisa.webdatacommons.org/216859421

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 beginnings of many new drugs are from natural sources, such as plants and microorganisms, but they are too expensive to harvest from the origin.
http://www.w3.org/ns/prov#wasQuotedFrom	citizendium.org