About: http://webisa.webdatacommons.org/159011247

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 idea is that the groups studied, including the control, should not be aware of the group in which they are placed.
http://www.w3.org/ns/prov#wasQuotedFrom	explorable.com