About: http://webisa.webdatacommons.org/346955040

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	Fv.x=distance to the contact point*k Fv.y=distance to the contact point*k are calculated, where k is a constant.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com