About: http://webisa.webdatacommons.org/277381555

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	Once upon a time there was an unwritten tradition among presidents and former presidents not to speak ill of those who had gone before.
http://www.w3.org/ns/prov#wasQuotedFrom	thelandofthefree.net