About: http://webisa.webdatacommons.org/121197272

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	A question mark is also used to show that there is doubt or uncertainty about something written in a sentence, such as a name, a date, or a word.
http://www.w3.org/ns/prov#wasQuotedFrom	netplaces.com