About: http://webisa.webdatacommons.org/139014802

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	Operating systems such as OS/390 and OS/400 are very mature and one never hears about security flaws found in them.
http://www.w3.org/ns/prov#wasQuotedFrom	techtarget.com