About: http://webisa.webdatacommons.org/182805286

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	Mac OS X is built on the Mach kernel, which itself stems from work done from FreeBSD, one of the many Unix variants.
http://www.w3.org/ns/prov#wasQuotedFrom	macobserver.com