About: http://webisa.webdatacommons.org/99983798

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	Hampering efforts, Jordan and other researchers say, is a relative lack of information on the effectiveness of campaigns.
http://www.w3.org/ns/prov#wasQuotedFrom	variety.com