About: http://webisa.webdatacommons.org/293325065

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	One popular method used by many operating systems, including Windows, Mac OS X, CP/M, DOS, VMS, and VM/CMS, is to determine the format of a file based on the end of its name???the letters following the final period.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org