About: http://webisa.webdatacommons.org/176786590

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	An operation unit 1221 is constituted by a pointing device such as a keyboard or a mouse connected to the host computer 1214.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com