About: http://webisa.webdatacommons.org/138138712

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 extension is a handy tool for adding a layer of security for your attached PDF files when sending it through Gmail.The extension can be installed for free from the Chrome Web Store.
http://www.w3.org/ns/prov#wasQuotedFrom	maketecheasier.com