About: http://webisa.webdatacommons.org/351907129

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	w and third column i.e. first subscript denotes row and second subscript denote column.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net