{HEAD ~ The present invention} concerns {TAIL ~ a bidirectional guide system} for limiting lateral displacement of the road axle of a rail guided vehicle 
concerns
{ HEAD ~ The present invention } concerns { TAIL ~ a bidirectional guide system } for limiting lateral displacement of the road axle of a rail guided vehicle
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH