About: http://webisa.webdatacommons.org/9466982

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	In particular, the prior art does not provide for a wheel frame which allows a first or front wheel to be raised, or rotated upwardly in order to overcome (i.e. ride over) an obstacle such as a rock, twig or other such obstacles.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr