About: http://webisa.webdatacommons.org/167473495

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	??? Semi-formal letters to people you do not know well or people you know but you want to sound polite and respectful, e.g. your teacher, your pen friend's parents, etc, written in a polite and respectful style.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com