About: http://webisa.webdatacommons.org/98259118

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	This started a couple of months ago and pops up for just about every site, including Google, Macy's, DSW, Outlook.com, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	superuser.com