About: http://webisa.webdatacommons.org/243159704

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	In addition to item.authorname, item.title, item.description etc selectors you can type in item.content by hand to perform an action such as filter or regex on all the data not just a part between specicfied tags.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com