About: http://webisa.webdatacommons.org/234938313

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	r but mostly occurs in a direction perpendicular to the surface of the figure due to the fact that the surface of the magnetic poles for producing the magnetic field are extending in parallel with the surface of the figure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com