About: http://webisa.webdatacommons.org/86229752

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	When customers touch multiple messages the only true way to get a sense of whether one or both messages were necessary is to do hold-out tests.
http://www.w3.org/ns/prov#wasQuotedFrom	rimmkaufman.com