About: http://webisa.webdatacommons.org/302841445

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	The THOMAS system???s enhanced toolbar allows users to bookmark and share information via email or social networking sites such as Facebook or Twitter.
http://www.w3.org/ns/prov#wasQuotedFrom	loc.gov