About: http://webisa.webdatacommons.org/404226791

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	it is easy to use, it has a very generous trial before buying, fairly low price, and is nice for both comparing and merging many different file types and directories, including Excel.
http://www.w3.org/ns/prov#wasQuotedFrom	superuser.com