About: http://webisa.webdatacommons.org/210183225

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	Alternatively, the tensioning may be accomplished automatically through electrical motors or other mechanisms (not illustrated).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com