About: http://webisa.webdatacommons.org/245255169

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	A shell is a program which interacts directly with an operating system such as MS-DOS, Unix/Linux, Mac OS X, or others ??? but it is most commonly associated with Unices.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.org