About: http://webisa.webdatacommons.org/322832941

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	The problem becomes a lot easier to solve when you first transpose your matrix, i.e. switch the columns to rows and vice-versa, as then your operation again is a simple column sort.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com