About: http://webisa.webdatacommons.org/12128992

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	In fact, one of the first operating system for a PC was (MS-DOS), where DOS stands for "disk operating system".
http://www.w3.org/ns/prov#wasQuotedFrom	readbag.com