About: http://webisa.webdatacommons.org/392078259

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	Second, Ubuntu is a completely free and open-source OS, availing developers of easy access to source code and minimizing device costs.
http://www.w3.org/ns/prov#wasQuotedFrom	ubuntu.com