About: http://webisa.webdatacommons.org/22691358

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 most obvious examples are drugs that enhance wakefulness and concentration.
http://www.w3.org/ns/prov#wasQuotedFrom	boingboing.net