About: http://webisa.webdatacommons.org/288667302

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	With Facebook's dialog in mind, I have created LightFace: a Facebook lightbox...Page Visibility APIOne event he is always been lacking within the document is a signal for when the user is looking at a given tab, or another tab.
http://www.w3.org/ns/prov#wasQuotedFrom	davidwalsh.name