About: http://webisa.webdatacommons.org/253308796

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	Well, u-joints are a 4-pole system and the u-joint does travel in a circular path on two poles.
http://www.w3.org/ns/prov#wasQuotedFrom	jeepforum.com