About: http://webisa.webdatacommons.org/155214941

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 poles 25 a and 25 b are made of magnetic conducting material, such as steel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com