About: http://webisa.webdatacommons.org/263289598

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	it is been available in every browser for a long time, except IE. I do not think its use is that limited.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com