About: http://webisa.webdatacommons.org/421394281

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	A good idea would be to include a tiny questionnaire at the moment they unsubscribe ??? this way, you???ll get valuable feedback and will know if it???s because of your timing, content or other reason.
http://www.w3.org/ns/prov#wasQuotedFrom	emailaddressmanager.com