About: http://webisa.webdatacommons.org/299309163

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	column data is null, and any other character specifies that the column data is
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net