About: http://webisa.webdatacommons.org/282625172

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	Paper letters have almost disappeared (just ask the post office), replaced by E-mail, which itself is quickly being displaced by social media such as Facebook and Twitter.
http://www.w3.org/ns/prov#wasQuotedFrom	sunadvocate.com