About: http://webisa.webdatacommons.org/170542004

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	This may be accomplished for example, by including a bump on the bottom edge of the sliding bar which engages an indentation in the bottom horizontal beam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com