About: http://webisa.webdatacommons.org/132886084

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	You can also solve the problem of the sender not having a copy by including an option to send it to them as well.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com