About: http://webisa.webdatacommons.org/420082379

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 short, the handler is invoked when there is an attempt to focus a cell.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com