About: http://webisa.webdatacommons.org/218438688

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	The shell and other programs use variables (see man page) which allows to customize your system in a flexible, reversible way and on a per user basis (by setting / changing the contents of the variable).
http://www.w3.org/ns/prov#wasQuotedFrom	macworld.com