About: http://webisa.webdatacommons.org/277380560

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 a few companies have been using Btrfs in their products, including Facebook, which was testing it in production in April (2014)
http://www.w3.org/ns/prov#wasQuotedFrom	tuxmachines.org