About: http://webisa.webdatacommons.org/310328015

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	What I did was remove any of what I assumed to be temp files of main.cf from /etc/postfix/. they look like /etc/postfix/main.cf~n where n is a positive integer.
http://www.w3.org/ns/prov#wasQuotedFrom	howtoforge.com