About: http://webisa.webdatacommons.org/81087811

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	For instance, more than one illegal substance can cause impairment: the Transport Research Laboratory study found traces of cannabis, amphetamines, cocaine, methadone and other opiates.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com