About: http://webisa.webdatacommons.org/95835541

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	A screw or other mechanism is used to put the thin blade under tension.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org