About: http://webisa.webdatacommons.org/68094967

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 staffs cannot rotate relatively to each other because they are of rectangular, such as square, cross section, preferably of aluminium or an alloy thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com