About: http://webisa.webdatacommons.org/54578740

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 tie bars may include clamping mechanisms such as pistons and a mechanism is provided for moving blocks 112a and 112b under control to and from base 120.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com