About: http://webisa.webdatacommons.org/113363976

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 prior adjustable top rail generally has two L-shaped corner key blocks made of solid plastic, wood or other suitable material, each key block being securely attached at both ends of the top rail.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com